Cat Flap Fever Custom Cat Door Window Insert - Plexiglass | Insulated & Weather-Sealed | Tool-Free Install for Horizontal & Vertical Windows | Microchip Lock Options | Made in USA | Small Dogs & Pets

The Original & Best Selling Cat Door Window - Often imitated but never replicated, Cat Flap Fever has built premium custom-made windows for many thousands of delighted customers.

Eco-Friendly Insulated Protection – Custom-fit ¼-inch window pet door insert blocks drafts and retains warmth. Premium foam and brush weatherstripping seal out heat, cold air, rain, and snow.

Secure Smart Access – Choose magnetic, 4-way, or microchip locks that recognize up to 30 pets. Stops strays while letting your own in and out safely.

Tool-Free Setup for Renters & Homeowners – Installs and removes in under two minutes. No drilling or hardware. Ideal for apartments, condos, and seasonal homes.

Made in Georgia, USA – Handcrafted from premium materials for year-round strength. Designed to withstand temperature swings without warping or cracking.

Top-Rated Customer Service - We are committed to getting you the best cat door, and will work closely with you to ensure your complete satisfaction. Your happiness is our top priority!