Bosworth Model 74 In-Line Check Valve
85210 GUZ 74-9 (1-1/8") OR 180147 GUZ 74-10 (1-1/4")
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Smooth port with Buna-N Flapper Valve
Also called "Model 74" Check Valves. Use these check valves to keep your pump primed, increase pump lift or prevent backflow.
Although set up as an inline check valve, these valves are often installed, as a foot valve, at the business end of a bilge pump hose to help maintain the priming water between strokes. The longer the suction hose, the more important having a foot valve becomes. Preferably only used when there are backup bilge pumps/more than one bilge pump onboard. A surveyor may call out an in-line check valve as they can be failure points.