Dog Door for Sliding Glass Door Insert with Lock – All-Metal Frame & Magnetic Flat Closure, No-Cut Doggie Door for Large Dogs, Slider Doggy Door Insert, Adjustable Height (77 5/8" - 81") M-Black — Open-Box, 17% Off

Measure Your Dog Before Ordering : Size S (6.5"W x 10.63"H) – Ideal for small breeds like Chihuahuas, Yorkies, or cats; provides easy, squeeze-free access|Size M (8.7"W x 12.7"H) – Suited for medium breeds such as French Bulldogs, Beagles, or similar-sized dogs. Ensure a perfect fit by checking your pet’s chest width and shoulder height.

NO-CUT SLIDING DOOR INSERT : Easily install this doggy door for sliding glass doors in minutes without damaging your rental property or home. Simply fit the adjustable frame into your existing sliding glass door track and secure the locking screws. No drilling, no cutting, and no permanent modifications required. When you move, you can take it with you and restore your door to its original state.

ADJUSTABLE HEIGHT & VERSATILE FIT : Designed to fit standard sliding glass doors, this large dog door sliding glass door insert adjusts vertically from 77 5/8 inches to 81 inches to accommodate various ceiling heights. The panel can be installed on either the Left or Right side, giving you the flexibility to choose where your pet enters and exits based on your home’s layout.

HEAVY-DUTY ALL-METAL CONSTRUCTION : Built with a durable all-metal frame and panel, this pet door for sliding glass door is designed to withstand daily use by large, energetic dogs. Unlike plastic frames that can warp or crack in the sun, the metal construction ensures long-lasting performance and enhanced home security.

MAGNETIC FLAP & SECURITY LOCK : The pet flap features a magnetic flat closure that seals tightly to block out dust, helping to maintain your home's temperature. A built-in sliding security lock allows you to close the flap completely when you want to keep your pet inside or secure your home while you are away.

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