Secoh SLL-20, SLL-30, SLL-40, SLL-50 Diaphragm Replacement Kit

Fits Models SLL-20, SLL-30, SLL-40, SLL40-AL, & SLL-50.

Includes 2 diaphragms, 2 diaphragm frames, 2 nuts, 2 valve boxes, 1 filter, filter cover packing, tank base packing, and instructions.