PART NUMBER: AK1550. Whale Gulper 220 Service Kit. Whale Service Repair Kit. Contents 1 x Diaphragm, 1 x Nyloc Nut M5, 1 x Screw Hex M5 x 16mm, 1 x Outlet Valve Tricuspis, 1 x Marine Head 3/4" and 1", 1 x Valve Inlet and Outlet, 1 x Valve Plate, 1 x Outlet Valve Housing.
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