Ideal Pet Products Designer Series Pet Door Super Large White 2.12" x 17.93" x 23.87" Litter Boxes use Simple Solution Disposable Diaper

use Simple Solution Disposable Diaper Liners

Vet's Best Probiotic Soft Chews (30ct) for dogs helps to support and maintain digestive health

The inside cushion is tufted to keep the premium polyfil in place

Expandable: Can add extensions to span widths up to 54

Door Opening: 21" x 18

Ideal Pet Products Designer Series Pet Door Super Large White 2.12" x 17.93" x 23.87" Litter Boxes use Simple Solution Disposable DiaperIdeal's Designer Series Plastic Pet Door was developed with your Ideal Pets safety and sense of adventure in mind. Impact resistant frame that adapts to doors ranging from 1 1 4" to 2 in thickness. Flexible, tinted vinyl flap with patented edges that wont warp from use or extreme temperatures. Floating bottom threshold for perfect seal every time. Lock out slide to keep your Ideal Pet out of mischief when unsupervised. Average install time: 20