3/8 round rope gasket. This gasket is commonly found in the carpet feed model alaska stove doors, older model 140 furnaces (load and ash doors), and the newer KC III paddle feed models. If your stove door has a lip around where the door closes then your stove uses this 3/8 gasket. Door cement sold separate. If you are replacing gasket please make sure your track is clean of debris before placing cement and gasket in place. Gasket is sold in 5 FT lengths only.