Whale Henderson MK 5 pump service kit. The diaphragm measures 170mm across, with the holes spaced 70mm apart. For Whale double action pumps MH5550 and MR5560 two repair kits will be required to service the pump.

Kit contents:

• 1 x Inlet Valve Plate

• 1 x Inlet Valve

• 2 x Short Valve Screws

• 2 x Long Valve Screws

• 1 x Top Cover Seal

• 1 x Diaphragm

• 1 x Outlet Valve

• 2 x Large Circlips

• 2 x Small Circlips

• 8 x M5x25 Screws

• 8 x M5 Nuts