Compatible with Jabsco pump series 50890.

The Service Kit SK890 includes:
1 x cover
1 x diaphragm
4 x hex head screw
1 x screw recessed pan head washer
2 x waste pump joker valve
2 x waste pump port
(parts No. 7, 8, 10, 12, 14, 16, 17 of the exploded view)