Sliding Glass Door Pet Door Insert – No-Cut, All-Metal Frame & Magnetic Flat Closure, Adjustable Height (77 5/8" - 81") for Small to Medium Dogs, Left/Right Installation with Security Lock – Black — Open-Box, 24% Off

【Choose the Right Size for Your Pet】: Measure your dog's chest width and shoulder height before ordering. Size S (Flap Opening 6.5"W x 10.6"H) – ideal for small breeds up to 15 lbs (Chihuahuas, Yorkies, cats). Size M (Flap Opening 8.7"W x 12.7"H) – suited for medium breeds 15-40 lbs (French Bulldogs, Beagles). *For larger dogs >40 lbs, check our size L/XL options (sold separately).*

【Landlord-Friendly & No-Cut Installation】: Install this sliding glass door pet door insert in minutes without drilling, cutting, or permanent modifications. Simply fit the adjustable frame into your existing sliding door track and tighten the locking screws. When you move, take it with you and restore your door to its original state – perfect for renters and homeowners.

【Adjustable Height & Left/Right Flexibility】: Fits most standard sliding glass doors with a height range of 77 5/8" to 81". The panel can be mounted on either the left or right side, giving you the freedom to choose your pet’s entry direction based on your home’s layout. No need to buy a specific orientation.

【Heavy-Duty All-Metal Construction】: Unlike cheap plastic frames that warp or crack under sun exposure, this pet door is built with a durable all-metal frame and panel. It withstands daily use, scratching, and chewing, while providing enhanced home security and long-lasting performance you can trust.

【Magnetic Flap & Built-in Security Lock】: The magnetic flat closure seals tightly to block dust, drafts, insects, and outside noise – helping maintain your home’s temperature and reduce energy bills. The built-in sliding lock lets you completely seal the flap when you're away or want to keep your pet inside, adding an extra layer of security.

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