Stainless Steel Access Door that has been tested for air infiltration & water penetration. The door and frame are fully welded & gasketed. This access door is ideal for use in laboratories, clean rooms, operating rooms, etc… Comes in type 304 stainless steel with #4 satin polish finish. 2 Latches. Stainless Steel Finish. 26-3/4″W x 26-3/4″H Outside Flange Dimensions. 24″W x 2″D x 24″H Return Flange Dimensions.