Endura Flap E2 Single Flap Pet Door for Thin Doors

Ideal for thin doors 1/2" up to 1-1/8" thick, compatible with various door types Airtight magnetic seal provides excellent insulation, withstanding winds up to 50 mph Flap remains flexible in extreme temperatures from -40°F to 110°F Durable aluminum frame with customizable magnet strength for pet training and wind resistance Sturdy locking cover to block access when needed (inside frame only) Lifetime Warranty and Easy 90-Day Returns for peace of mind