Hale "Omni" Cat Door for Sash Windows

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  • Cat door for windows
  • Double flaps for weather resistance
  • Dual-pane glass provides supreme insulation
  • Available in 4 colors to better match your home
  • Clear, flexible flaps are easy for cats to use
  • An email will be sent to you requesting additional information for your order; it will take 3-4 weeks to make this custom order

The Hale door company's Omni Sash Window Cat Door is made for glass or wood windows that open vertically. They feature dual-pane glass and vinyl double flaps for high insulation value and weather resistance, which is ideal for rough weather conditions and one of the best product lines of door products. Designed specifically for cats, the flaps are clear and flexible to provide the utmost comfort and feeling of safety for your cats. This sash window cat flap is available in small or small-medium to fit cats of all shapes and sizes.

Not the door for you? Check out more tools-free pet doors here


  • Durable, extruded aluminum frame fits into window tracks 7/8" or wider. Can be custom-made to fit tracks as small as 1/2".
  • Frame available in three colors: White, Arizona Beige, or Brushed Aluminum.
  • Clear & flexible vinyl flaps lined with nylon pile weather stripping and magnets to keep the flap sealed when not in use, combat drafts, and prevent bugs from entering.
  • Includes extra black vinyl weather stripping to attach to the back edge of your window in order to prevent air leakage.
  • Sizes available in small and small-medium.
  • Polyethylene security cover included. Choose from which side you want the cover to load (left side, right side, top) to avoid any potential obstructions.


  • Weather-resistant, flaps keep out the cold and maintain a secure seal.
  • Variety of frame colors of this quality product to match your home's aesthetics.
  • Clear, flexible flaps are easy for cats to use and see-through.
  • Sizing range accommodates cats of all sizes.
  • Comes with a sash lock to regulate your pets access to and from the house.


  • Select the side of the panel in which you want the flap to be located. The position is determined from the inside looking out.
  • Provide the full width of your window. Measure from inside the track on the left to the track on the right.  Do not go into the track on the right.  The unit provided will have 3" of width adjustment.
  • Provide the height you can raise the window fully.
  • Provide the height above the window when it is closed.
  • Provide the overall thickness of the window track (1/2" minimum).
  • Provide the depth of the bottom track.

Size Chart

Flap SizeFlap DimensionHeight to Raise Window
Small5 1/2" w x 7 1/2" h10 15/16"
Small Medium6 1/2" w x 9 1/2" h13 1/8"

The Bronze is on back order and they expect that color to be back in stock and ready for production around the middle of July.  



Additional Information

Flap Material


Your Maximum Pet Size


Installation Instructions

Installation Instructions

Step 1: Before you install your sash insert, ensure that it is the correct size for your cat. If you’re not sure then going a little larger is better. While cats can force their way through smaller openings, it can be damaging over time and lead to back problems.  However, with a window installation, the size of the cat door will be limited by the size of the window opening. You will want to make sure that the sliding window can open enough to accommodate the sash insert as shown in Figure 1.

 hale omni sash in window

Step 2: Clean both sides of the glass window panes.  There will be some overlap of the window panes (Figure 1) when you are finished installing the window insert. It is very hard to clean between these panes of glass with the insert installed so cleaning well beforehand is recommended.

Step 3: Unroll the strips of fuzzy gray pile weather-stripping and feed them into the channels running along the window panel.  These channels will be on the side of the sash that your window closes against.

Step 4: Slide open the window and place the cat door into the window track.  

Step 5: Angle the stationary side of the sash into the window track.

Step 6: Insert the rest of the sash into the window track and slide the U channel into the window frame. Move the sliding plate to the side to expose the adjusting nuts.

Step 7: Tighten the adjusting nuts with your fingers. Slide the window closed to see if there are any gaps or spaces between the sash and the window. If there are any spaces, tighten one of the nuts to make the sash lean one way or the other. Once you are satisfied with the placement, use a wrench to tighten the nuts and secure the sash firmly in place.

Step 8: Slide the piece of weatherstripping at the top edge of the sash to expose the slider adjusting screws for the slider plate.  Loosen both preset screws one or two full turns.  If you loosen them too much, it might cause the slider plates to fall out.  Push the slide plates up until they stop. Tighten the screws to secure it into place and replace the fuzzy weatherstripping over it. There will be a gap above the fuzzy weather-stripping between the edge of the panel and the edge of the adjustment unit. Cover it with a piece of foam.

Step 9: Close the window and inspect for any gaps. If there are any, fill it in with the foam weatherstripping.

Step 10: Place vinyl weather-stripping on the top edge of the opening window or the bottom edge of the stationary window to seal the gap created by overlapping glass. Clean the edge of the spot that you chose with rubbing alcohol to ensure a good seal.  Cut vinyl weather-stripping to the proper length with scissors or a knife.  Remove the protective paper from the adhesive area and press firmly into position.

Step 11: If you so desire, you can put a screw or two (not included) through the window frame to prevent the window from being opened.  Note: Be very careful not to drill into the glass.  If you hit the window pane with either the tip of the drill bit or a screw, it will shatter.  The glass in the cat door comes all the way to the edge of the frame, so don’t try to drill into the cat door frame at all.




What 3 things do I have to know/measure when choosing a pet door for sash window?

Track width, Height you can raise the window, How wide the window is from left to right.

I am not sure how to measure window width and height?

For the Omni you need to open up your sliding window to the highest it will go, and measure from the track in the bottom to the bottom of the window. For the width you need to measure inside the track on the left and all the way over to the edge of the second track, do not go inside the track on the right. You want to stop short before going into the recessed portion.

What is the difference between vertical and horizontal window models?

The omni is a cat sash for vertical window (sash window) installation. If you need a horizontal window cat door then you would need to take a look at the custom Thermo Panel 3e.


Hale Pet Door 5 Year Limited No Fault Warranty

All parts—including flaps—and labor.

Thank you for doing business with Hale Pet Door™. We are sure you will receive years of excellent service with your purchase. If the product does not meet your expectations, please contact our office for return authorization and return it within 30 days of purchase for a full refund of the purchase price. Be sure to pack the product well as we can only give 50% credit for a damaged pet door.

HSPD Manufacturing, Inc. guarantees and warrants, subject to the conditions and restrictions stated below, that the Hale Pet Door™ products and component parts thereof, purchased from HSPD Manufacturing, Inc. shall be free from any defects in materials and workmanship. The warranty period for all Hale Pet Door™ model pet doors is effective from the date of purchase and extends to the anniversary date marking the end of the fifth year. We agree to exchange or repair at our expense, F.O.B. our plant or warehouse any unit found to be defective in workmanship and/or material, subject to plant inspection. (See notes A and B below).

1st year – 100% of all parts and labor; 2nd year – 50% of all parts and labor; 3rd year – 40% of all parts and labor; 4th year – 30% of all parts and labor; 5th year – 20% of all parts and labor.

This warranty does not include shipping to HSPD Manufacturing, Inc. or any field service labor unless the product was installed by Hale Pet Door™.

A-Glass Breakage: We use fully tempered glass of the greatest quality and strength available for each application. It also meets or exceeds all safety glazing laws and codes in the United States. Even tempered glass will break on occasion, but it is very rare. When there is a breakage of glass for whatever reason, within the FIRST YEAR, we will replace the unit for 50% of the current total price. There is no warranty on the glass after the first year.

B-Parts Damaged by Misuse or Neglect: HSPD Manufacturing, Inc. will pay 20% of the cost of the current list price of parts and labor. No reimbursement shall be greater than the price of the replacement part.

C-Omni Oversize Panels: This application is not recommended. Therefore, we will only warranty 50% of the cost of the panel for the first year. However, the pet door itself is covered per our standard warranty.

HSPD Manufacturing, Inc. will credit 50% towards the cost of a replacement Hale Pet Door™ that was damaged due to mis-cutting, mismeasuring, or any other damage due to no fault of HSPD Manufacturing, Inc. HSPD Manufacturing, Inc. will not accept any responsibility beyond 50% if the damage is due to no fault of HSPD Manufacturing, Inc. HSPD Manufacturing, Inc. reserves the right to inspect any and all products before honoring any claim.

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