- Durable, Aluminum frame and pet door made to withstand extreme climates
- Removable panel with built-in dog door fits into sliding glass door track
- Made with dual-pane, Low-E glass to improve energy efficiency and reduce infrared & ultraviolet light
- Tool-free installation
- Need a different size? Check out this product's custom options
Product Details
The Endura Flap Thermo Panel 3e is a highly insulated dog door for sliding glass doors that fits into your existing door track. This removable panel has an easy, tool-free installation, as the spring-loaded design safely secures the panel in place without making any permanent alterations. It's great for renters and vacation homes. Engineered with dual-pane, Low-E glass, and a polyolefin polymer flap that magnetically seals, the Thermo Panel 3e provides supreme insulation and energy efficiency. Withstanding extreme temperatures as low as -40 degrees Fahrenheit, the thermal quality of the Endura Flap Patio Panel is designed to prevent heating and cooling loss, which is common among other patio panels. The built-in doggie door will grant your pets the freedom they crave while saving you on energy bills.
Can't find the right size? Check out our custom sizing options.
Features:
- Pet flaps range from Small to Extra Large
- Patio Panel comes in three height ranges to accommodate common sliding glass door sizes
- Heavy-duty aluminum frame designed for sliding glass door tracks at least 1” thick
- Dual-pane, Low-E glass minimizes the amount of infrared & ultraviolet light coming through the glass without minimizing the amount of light entering the room
- Environmentally-friendly polyolefin polymer flap remains flexible and usable in temperatures as low as -40 degrees Fahrenheit
- Magnetic closure on three sides of the flap enhance storm and wind resistance.
- Durable and secure locking cover included
- C-Clamp Lock included for to lock the slider into the door frame or a Charley Bar (such as one from Wedgit pet products) can be purchased separately
- Designed and engineered in the USA
Benefits:
- Easy installation with spring-loaded design allows you to remove the panel easily if need be. Great for rental or vacation homes
- Avoid having to cut holes in an exterior wall or through the sliding glass door
- The Thermo Panel comes in white (high-gloss), black (dark metallic tone) and brushed aluminum to match the interior design of your sliding glass door
- Sturdy locking cover allows you to keep your pet inside/outside when need be, especially good for at night or if you want to keep the dog outside during the day when you are at work
- Gives dogs and cats the freedom to come and go when you are not home
- Structurally sound design is built to last so you don't have to spend a fortune on replacement flaps
- Free U.S. Shipping
Size Chart
| Flap Size | Flap Dimension | Step Over Range | Overall Panel Width | Recommended Pet Height* |
|---|---|---|---|---|
| Small | 6"w x 11"h | 3" - 5" | 11 1/4" | 9“-15" |
| Medium | 8" w x 15" h | 3"-5" | 13 1/4" | 9" - 19" |
| Large | 10" w x 19" h | 3" - 7" (ships at 5") | 15 1/4" | 9“ - 23" |
| Extra Large | 12" w x 23" h | 3" - 7" (ships at 5") | 17 1/4" | 9“ - 29" |
Dont know which pet door size to get? Here is measurement guide to help you out.
Track Height Adjustment range is based on the measurement of your sliding door track height from the lowest point of your track to the highest point. Each Endura Flap Thermo Panel 3e has a 3" adjustment range. Review our Track Measuring Guide video for additional, detailed information The following adjustment ranges are available:
- Short: 74 3⁄4" – 77 3⁄4"
- Regular: 77 1⁄4" – 80 1⁄4"
- Tall: 93 1⁄4" – 96 1⁄4" (additional cost)
If your measured track height does not fall within one of the ranges above, we can make a custom height! Custom height option may take up to 4 weeks to special order the glass and build the panel.
Installation Instructions
Thermo Panel 3e Installation
Aluminum Panel Installation Instructions
Parts
- Panel Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Sliding Door C-Clamp Lock
Adjusting Step-over Height
The Endura aluminum sliding door panel has a patented Adjustable Step-Over feature which allows you to adjust the height of the flap to the most comfortable fit for your pet. The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder. If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 1: Lay the entire panel on a flat surface. Using a #2 Philips head screwdriver, remove the bottom side-screws and loosen the upper side-screws. Screws were tightly installed to hold the panel together during shipping; a power tool* is recommended.
*If you do not have a Phillips head drill bit skinny enough to fit, let us know and we’ll send you one for free.
Step 2: Once the bottom screws have been removed and the upper side-screws loosened, the Pet Door Assembly and spacers can be removed by sliding the sections down and out of the panel.
Step 3: Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height. You can move the spacer below and above the flap to raise or lower the flap height.
The order of the pieces is important! The piece on the bottom needs to always be at the bottom, as that is where the screws attach.
Make sure that the locking cover side of the flap frame is on the same side as the thumbscrews.
Step 4: When finished, replace the bottom side-screws and tighten the next upper-side screws.
Please Note: A lower step-over height is easier for pets to navigate. However, if the top of the flap is low enough that the pet needs to crouch to get through their pet door, they can injure themselves and possibly cause the pet door to malfunction. If your pet door does not sit at a comfortable height for your pet, you may need a larger flap size.
Two Piece Panel Instructions
If you have a two piece panel, follow the following steps, then move onto the Installation Instructions. If you have a one piece panel, skip this section.
Step 1: Align the aluminum connectors extending from the bottom flap panel section with the top glass panels section. Press the aluminum connectors into the holes at the bottom of the top glass panel section. Ensure that the locking cover and thumbscrews are on the same side.
Step 2: Gently tap the bottom surface of the panel against the ground to completely insert the connectors. Protect hard surfaces to prevent scratching. The components of the panel are designed to slide together very tightly.Step 3: Fasten the two panels together using the four hex drive flat head screws found in the panel packaging. Use the hex wrench to tighten screws so the two halves of the door are pulled together.
Please Note: Screw holes may look misaligned; this is intentional to ensure a tight fit. The panels will squeeze together as the screws are tightened.
Installation Instructions
Step 1: Loosen the thumbscrews at the top of the pet panel. This allows the spring mechanism to move freely up and down.
Step 2: To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold. Seat the panel on top of the small guide rail in the track. If you can’t quite get it in the track, try swinging in from the outside as the outside track wall may be shorter.
You want to put the pet door in your track before applying any weather stripping to ensure it fits. If the panel fits well, proceed to the next step. See the FAQs if you have trouble.
Step 3: Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground. Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
Step 4: The center post weather seal strip (draft stopper) should be installed on the inside of the home. It can install on either the back edge of the sliding door panel or the leading edge of the stationary panel. This strip prevents air from leaking between the sliding glass door and the stationary panel. Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
Lock Details
Since you cannot lock your sliding door to your panel pet door, we have provided you with alternative locking methods to secure your home:
Installing the sliding door clamp: This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
If you aren’t able to use the lock that comes with the panel: A great alternative to locking your sliding glass door is a Charley bar or dowel in the track. Both work off the same concept – they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
Other Installation Options
Semi-Permanent Installation:
You might choose to secure the panel in your track with screws. This can be done by drilling screws at an angle in the top and bottom tracks. We recommend doing this from the outside to minimize damage to the sliding glass door frame. One-way screws will prevent tampering or removal of the panel from the outside.
Stationary Panel:
Some stationary sliding door panels can be unfastened and moved over to one side so that you can install the pet door panel between the jamb and stationary panel.
Avoid damaging your sliding glass door by checking that your door can move and that you can reinstall it properly before trying to uninstall the unit.
You will still lose space in your slider to move through, however, you will be able to use your existing sliding door lock to secure your home. Installing your pet door this way is also great in that you already have an alarm system in place.
If your sliding glass door slides on the outside track, using an alternative lock might not be possible, so this allows you to still lock your door.
NOTE: You can do the stationary panel install with the regular spring actuator method – no need to screw it in.
Videos
ENDURA FLAP® PET DOORS: Endura Dog Door Impact Test
ENDURA FLAP® PET DOORS: Thermo Panel 3e
How to Measure Your Sliding Glass Door for a Pet Door
How to Adjust the Magnet Strength on Your Endura Flap
How to Adjust Your Stepover
FAQ
|
What is the thickness of the panel? The Patio Pacific Endura Flap Thermo Panel 3e is 1" thick. It is only thick enough for a single flap, not a double flap. |
|
Does this panel work with vinyl sliders? Yes, the Endura Flap 3e is compatible with most vinyl sliding patio doors for a vinyl-pet slider that matches your existing track. At 1" thick, it is thicker than most aluminum panels, so it will fit better in a vinyl track. The track width may not line up exactly with the panel, but it is only an issue with the aesthetics, not functionality. |
|
What do I do if this does not come in size that will fit my door? If none of these sizes will fit your door, you can order a custom fit Endura Flap Thermo Panel 3e. |
|
Does this keep mice, rats, and other pests out? This is a manual door, so there is no guarantee that critters will not get in. However, the Endura Flap has incredibly strong magnets that are hard for small critters to push through and get in. Many of our electronic and microchip pet doors have locks that keep out intruder critters and are racoon-proof. |
|
How do I measure my door to get the correct height adjustment size? Measure from the innermost part of the bottom track to the innermost top part of the track. If there is a pencil railing, include that in the measurement because the panel straddles the railing. |
|
What do the Step-Over Range dimensions mean? The step-over is the part of the panel under the actual door opening. Depending on the flap size purchased, the step-over can range from 3"-7". This means that you can adjust it to any step-over within that range. So if you have a puppy, you can keep adjusting it as they grow. |
|
Will there be enough room for me to get through after the panel is installed? That depends on how wide your sliding glass door opens and how wide the panel you purchase is. Those dimensions can be found under the "Overall Panel Width" column. |
|
Can an intruder remove the Endura Flap dog door for slider from the outside? No, the thumb screws are on the inside of the panel, so once installed, the Endura Flap Panel cannot be lifted out and removed without first loosening the thumbscrews from inside the home. |
|
What locking mechanism can I use for the Thermo Panel 3e? This door comes with a secure clamp lock. Alternatively, the Endura dog and cat door for sliding glass door can be secured with a Charley Bar for added security. |
|
Does the Endura Flap dog door sliding door come with locking covers for security? Yes, these dog doors come with locking covers to ensure safety for your pet and home. Endura Flaps have locking covers that slide over them on the side facing inside your home and are made of sturdy, heavy-duty ABS plastic. Unfortunately, they cannot be used on the outside of Endura Flap Panels as an alternative. |
|
Do the Endura Flap panels require tools for installation? Endura Flap sliding glass dog doors under 80 ¼" do not require tools, making them one of the best dog doors for rental homes! However, everything above this height generally will require some tools for installation. What we call a sectional panel will be shipped in two pieces because it is so tall. Breaking the pet door for sliding door down saves the customers on shipping costs, because we are able to ship in a smaller package. The sectionals will need to be assembled with 4 hex screws and a hex wrench, all of which are provided. |
|
Is this door good in a cold winter climate? I want something effective in our winter months. Yes, the Endura Flap has been tested in -4°F. |
|
Will this take up too much space in my slider? The panel will take up some space, and some pet owners have said that they have trouble squeezing by it. Some alternative options include line of Doors 4 Pets and People and Pet Door Guys pet doors. |
Warranty
Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.
Customer Reviews
Size Chart
| Flap Size | Flap Dimension | Step Over Range | Overall Panel Width | Recommended Pet Height* |
|---|---|---|---|---|
| Small | 6"w x 11"h | 3" - 5" | 11 1/4" | 9“-15" |
| Medium | 8" w x 15" h | 3"-5" | 13 1/4" | 9" - 19" |
| Large | 10" w x 19" h | 3" - 7" (ships at 5") | 15 1/4" | 9“ - 23" |
| Extra Large | 12" w x 23" h | 3" - 7" (ships at 5") | 17 1/4" | 9“ - 29" |
Dont know which pet door size to get? Here is measurement guide to help you out.
Track Height Adjustment range is based on the measurement of your sliding door track height from the lowest point of your track to the highest point. Each Endura Flap Thermo Panel 3e has a 3" adjustment range. Review our Track Measuring Guide video for additional, detailed information The following adjustment ranges are available:
- Short: 74 3⁄4" – 77 3⁄4"
- Regular: 77 1⁄4" – 80 1⁄4"
- Tall: 93 1⁄4" – 96 1⁄4" (additional cost)
If your measured track height does not fall within one of the ranges above, we can make a custom height! Custom height option may take up to 4 weeks to special order the glass and build the panel.
Installation Instructions
Thermo Panel 3e Installation
Aluminum Panel Installation Instructions
Parts
- Panel Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Sliding Door C-Clamp Lock
Adjusting Step-over Height
The Endura aluminum sliding door panel has a patented Adjustable Step-Over feature which allows you to adjust the height of the flap to the most comfortable fit for your pet. The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder. If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 1: Lay the entire panel on a flat surface. Using a #2 Philips head screwdriver, remove the bottom side-screws and loosen the upper side-screws. Screws were tightly installed to hold the panel together during shipping; a power tool* is recommended.
*If you do not have a Phillips head drill bit skinny enough to fit, let us know and we’ll send you one for free.
Step 2: Once the bottom screws have been removed and the upper side-screws loosened, the Pet Door Assembly and spacers can be removed by sliding the sections down and out of the panel.
Step 3: Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height. You can move the spacer below and above the flap to raise or lower the flap height.
The order of the pieces is important! The piece on the bottom needs to always be at the bottom, as that is where the screws attach.
Make sure that the locking cover side of the flap frame is on the same side as the thumbscrews.
Step 4: When finished, replace the bottom side-screws and tighten the next upper-side screws.
Please Note: A lower step-over height is easier for pets to navigate. However, if the top of the flap is low enough that the pet needs to crouch to get through their pet door, they can injure themselves and possibly cause the pet door to malfunction. If your pet door does not sit at a comfortable height for your pet, you may need a larger flap size.
Two Piece Panel Instructions
If you have a two piece panel, follow the following steps, then move onto the Installation Instructions. If you have a one piece panel, skip this section.
Step 1: Align the aluminum connectors extending from the bottom flap panel section with the top glass panels section. Press the aluminum connectors into the holes at the bottom of the top glass panel section. Ensure that the locking cover and thumbscrews are on the same side.
Step 2: Gently tap the bottom surface of the panel against the ground to completely insert the connectors. Protect hard surfaces to prevent scratching. The components of the panel are designed to slide together very tightly.Step 3: Fasten the two panels together using the four hex drive flat head screws found in the panel packaging. Use the hex wrench to tighten screws so the two halves of the door are pulled together.
Please Note: Screw holes may look misaligned; this is intentional to ensure a tight fit. The panels will squeeze together as the screws are tightened.
Installation Instructions
Step 1: Loosen the thumbscrews at the top of the pet panel. This allows the spring mechanism to move freely up and down.
Step 2: To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold. Seat the panel on top of the small guide rail in the track. If you can’t quite get it in the track, try swinging in from the outside as the outside track wall may be shorter.
You want to put the pet door in your track before applying any weather stripping to ensure it fits. If the panel fits well, proceed to the next step. See the FAQs if you have trouble.
Step 3: Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground. Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
Step 4: The center post weather seal strip (draft stopper) should be installed on the inside of the home. It can install on either the back edge of the sliding door panel or the leading edge of the stationary panel. This strip prevents air from leaking between the sliding glass door and the stationary panel. Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
Lock Details
Since you cannot lock your sliding door to your panel pet door, we have provided you with alternative locking methods to secure your home:
Installing the sliding door clamp: This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
If you aren’t able to use the lock that comes with the panel: A great alternative to locking your sliding glass door is a Charley bar or dowel in the track. Both work off the same concept – they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
Other Installation Options
Semi-Permanent Installation:
You might choose to secure the panel in your track with screws. This can be done by drilling screws at an angle in the top and bottom tracks. We recommend doing this from the outside to minimize damage to the sliding glass door frame. One-way screws will prevent tampering or removal of the panel from the outside.
Stationary Panel:
Some stationary sliding door panels can be unfastened and moved over to one side so that you can install the pet door panel between the jamb and stationary panel.
Avoid damaging your sliding glass door by checking that your door can move and that you can reinstall it properly before trying to uninstall the unit.
You will still lose space in your slider to move through, however, you will be able to use your existing sliding door lock to secure your home. Installing your pet door this way is also great in that you already have an alarm system in place.
If your sliding glass door slides on the outside track, using an alternative lock might not be possible, so this allows you to still lock your door.
NOTE: You can do the stationary panel install with the regular spring actuator method – no need to screw it in.
Videos
ENDURA FLAP® PET DOORS: Endura Dog Door Impact Test
ENDURA FLAP® PET DOORS: Thermo Panel 3e
How to Measure Your Sliding Glass Door for a Pet Door
How to Adjust the Magnet Strength on Your Endura Flap
How to Adjust Your Stepover
FAQ
|
What is the thickness of the panel? The Patio Pacific Endura Flap Thermo Panel 3e is 1" thick. It is only thick enough for a single flap, not a double flap. |
|
Does this panel work with vinyl sliders? Yes, the Endura Flap 3e is compatible with most vinyl sliding patio doors for a vinyl-pet slider that matches your existing track. At 1" thick, it is thicker than most aluminum panels, so it will fit better in a vinyl track. The track width may not line up exactly with the panel, but it is only an issue with the aesthetics, not functionality. |
|
What do I do if this does not come in size that will fit my door? If none of these sizes will fit your door, you can order a custom fit Endura Flap Thermo Panel 3e. |
|
Does this keep mice, rats, and other pests out? This is a manual door, so there is no guarantee that critters will not get in. However, the Endura Flap has incredibly strong magnets that are hard for small critters to push through and get in. Many of our electronic and microchip pet doors have locks that keep out intruder critters and are racoon-proof. |
|
How do I measure my door to get the correct height adjustment size? Measure from the innermost part of the bottom track to the innermost top part of the track. If there is a pencil railing, include that in the measurement because the panel straddles the railing. |
|
What do the Step-Over Range dimensions mean? The step-over is the part of the panel under the actual door opening. Depending on the flap size purchased, the step-over can range from 3"-7". This means that you can adjust it to any step-over within that range. So if you have a puppy, you can keep adjusting it as they grow. |
|
Will there be enough room for me to get through after the panel is installed? That depends on how wide your sliding glass door opens and how wide the panel you purchase is. Those dimensions can be found under the "Overall Panel Width" column. |
|
Can an intruder remove the Endura Flap dog door for slider from the outside? No, the thumb screws are on the inside of the panel, so once installed, the Endura Flap Panel cannot be lifted out and removed without first loosening the thumbscrews from inside the home. |
|
What locking mechanism can I use for the Thermo Panel 3e? This door comes with a secure clamp lock. Alternatively, the Endura dog and cat door for sliding glass door can be secured with a Charley Bar for added security. |
|
Does the Endura Flap dog door sliding door come with locking covers for security? Yes, these dog doors come with locking covers to ensure safety for your pet and home. Endura Flaps have locking covers that slide over them on the side facing inside your home and are made of sturdy, heavy-duty ABS plastic. Unfortunately, they cannot be used on the outside of Endura Flap Panels as an alternative. |
|
Do the Endura Flap panels require tools for installation? Endura Flap sliding glass dog doors under 80 ¼" do not require tools, making them one of the best dog doors for rental homes! However, everything above this height generally will require some tools for installation. What we call a sectional panel will be shipped in two pieces because it is so tall. Breaking the pet door for sliding door down saves the customers on shipping costs, because we are able to ship in a smaller package. The sectionals will need to be assembled with 4 hex screws and a hex wrench, all of which are provided. |
|
Is this door good in a cold winter climate? I want something effective in our winter months. Yes, the Endura Flap has been tested in -4°F. |
|
Will this take up too much space in my slider? The panel will take up some space, and some pet owners have said that they have trouble squeezing by it. Some alternative options include line of Doors 4 Pets and People and Pet Door Guys pet doors. |
Warranty
Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.
Our endura Flap door arrived damaged. I sent pictures to pet door.com customer service. Within the week they had the damaged door picked up and a replacement door on it's way. Once installed, the new door presented a challenge for one of our dogs, but once we coaxed her through it a time or two, she overcame her fears. Very impressed with the doors overall weather resistance.
I purchased the endura Flap Thermo Panel 3e last month and I couldn't be happier about it. The door was so easy to install and it isolates very well. In the Netherlands it can get very windy, so I was not sure it would work, but it actually does. We had only one day with a windstorm that you could hear a bit of noise from the wind, but definitely less than I expected and in "normal" days you can hear nothing. The delivery of the door took a bit longer than expected due to supply issues, but I was kept informed week by week on the progress, so I felt very reassured by the team. Overall, great customer service and great product!
We just received the pet door week. The quality is far superior to our last sliding glass doggie door. it's much heavier/more solid, the glass is higher quality and better insulated, and the flap is both thicker and has a stronger magnet to keep it closed, even during high winds. Our sliding doors are oversized, custom, Pella doors, and we were concerned the pet door wouldn't fit properly. However, the fit was absolutely perfect, and we couldn't be happier. It was well worth the price.
I recently purchased the Thermo Panel 3E door. It took me 5 minutes to put it in my sliding door frame. The fit is perfect, no air leaks, the door is solid and the flap works perfectly. This is a well made America's product. I wish I had researched dog doors sooner. I suffered with an inferior product for year. Thank you endura. I will recommend your products to everyone I know. The Thermo Panel 3E was worth every cent. :-)
We purchased this doggie door for our Bloodhound/Lab mix (93 1/4' x 96 1/4" large size) over 3 1/2 years ago and it has and continues to work perfectly. Easy to install and remove. It is still in perfect condition and we feel it was money well spent. Highly recommend for your large sliding patio doors.
