In-line non-return valves fi t to suction hose to aid priming and prevent backfl ow of water into bilge. Corrosion resistant polypropylene with neoprene valves and stainless hardware. 3 hose barb sizes.
| J31-127 | Suits 20mm (3/4") hose 29295-1011 |
| J31-123 | Suits 25mm (1") hose 29295-1000 |
| J31-124 | Suits 38mm (1 1/2") hose 29295-1010 |