This Whale pump service kit is suitable to be used with Gusher Urchin pumps and Henderson Chimp MK3 pumps. The Whale nitrile service kit / repair kit (Whale AK9011) includes: 1 x Diaphragm, 1 x Inlet Valve, 1 x Outlet Valve, 2 x Small Circlip and 2 x Large Circlip.