Petsafe Extreme Weather Sliding Glass Pet Door cf-size-large two are used for the

two are used for the frame swinging out and two are used for the panel swinging in

Fits most 2’ 8"

Replacement pet door flap is available in sizes Small to X-Large sizes

Weather-proof

Petsafe Extreme Weather Sliding Glass Pet Door cf-size-large two are used for theSliding glass door insert panel with double vinyl flaps that protect against drafts Easy to install no tools required! Fits track heights 75 7 8" 81" tall Two flap sizes Medium 8 3 4 x 13 3 16 for pets under 13" tall & Large 10 1 4 x 16 3 8 for pets under 19. 5" tall Comes with a charley bar for added security Slide in plastic closing cover to keep pets in when needed The Extreme Weather Sliding Glass Pet Door is Petsafe's most energy efficient