The Alto-Shaam GS22952 Oven Door Gasket forms a sealing barrier around the door opening of compatible commercial oven equipment. Its four-sided construction follows the perimeter of the oven door, while the 19-1/2-inch by 28-inch dimensions correspond to the specified gasket size. When the door is closed, the gasket sits between the door and cabinet frame to limit heat and air leakage... https://partsfe.com/gs22952-alto-shaam-gasket-door