HARKEN 40mm Cruising ESP Sheave 75408 Neoprene valves and diaphragms Twin

Neoprene valves and diaphragms Twin diaphragms (retains suction even if one diaphragm is damaged)Easy access for cleaning and servicing via large nylon hand nuts (no tools required)Free flow

- All Day/Night Plus models come complete with plastic interior trim ring insect screen mounting hardware and an easy-to-understand installation manual

Non-return valve prevents back flow into the bilge

and is impervious to wear

head and soft hand grip

HARKEN 40mm Cruising ESP Sheave 75408 Neoprene valves and diaphragms TwinSelf contained sheaves are designed for sailors to use in custom applications. Use Cruising ESP sheaves to handle high static loads from halyards and reef lines. Sheaves are carbon black Delrin for UV protection and turn on stainless steel spacers. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.