To ensure your pet's safety, regularly check all kennel parts and doors for replacement. This Replacement Door is designed specifically for use with the Aspen Pet Pet Porter & Pet Porter® II, Ultra Vari Kennel®, Sky Kennel® Ultra, Ruffmaxx Kennels, and the Petco Premium 500-800 series kennels, in size large (36" x 25" x 27"). To ensure a proper fit, be sure to match your pet's kennel size with the appropriate product/item number for this replacement door.

INSTRUCTIONS: To ensure a proper fit, be sure to match your pet's kennel door dimensions with the appropriate dimensions of the replacement door.
L 15 1/4" x H 20 1/4" - Fits 36" Kennels 
Kennel Size - large (36" x 25" x 27")