Security Boss Custom MaxSeal PRO Door Mount

The MaxSeal® PRO pet door is available for Custom applications in doors, 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. Flap dimensions are keep on file for easy replacement in the future if needed. Rough Cut Dimensions Square Inch Range 0-69" 69-93" 93-141" 141-175" 175-215" 215-257" 257-309 309-350" 350-372" 372-527" 527-600" WHATS A PLUS+ STARTER KIT? Any pet door listed with PLUS+ means that it includes everything needed in a New Pet Door Starter Kit. Rather than have to go find these necessary items individually we have bundled it as one comprehensive product. SAVE BIG when ordering bundled vs order after