Fits model no. 1180, 1253, 1280, 1380, 6400, 3101, 3102, 3103, 2601, 2602, 2603, 2001, 2002, 2003, 2000, 2802, 2803, 3060. Includes 1-2420, 1-2419, 1-5297 (gaskets), 1-2541, 1-4527, 1-4948, 1-4949 (o-rings), 1-4324-1 (bottom valve) 1-2465-1 (diaphragm), 3-3538 (plunger cup), 2-3017-1 (cup disc).