Security Boss MaxSeal Custom Made for Walls Double Size Length Width Height Small

Size Length Width Height Small 30" 30" 15" Medium 36" 36" 20" Large 48" 48" 24" Extra Large 60" 48" 24"

You won’t find a better made Whelping Box

then the SB Standard Patio Insert should fit your slider

AR4500: 24"W x 30"H x 38"L

Security Boss MaxSeal Custom Made for Walls Double Size Length Width Height SmallThe MaxSeal pet door is available for Custom applications in walls, for example; 1. Replacing existing pet doors without altering the existing cutout 2. Special Needs situations; larger or irregular shaped pet doors that will accommodate a pet with mobility problems such as arthritis or physiological hip problems. All Security Boss products are hand built to order. Note: These Custom models have the same specifications as the standard Door Models.