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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
UPC: 093344007439
Running Depth: Top Water
Accept standard thru-hulls into the base and standard in-line valves on top
Rated Engine Speed
Forespar MF 840 Vented Loop - 1-1/2" [903000] Watersports | Accessories UPC: 093344007439MF 840 Vented Loop 1 1 2" Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither vent nor loop will corrode. The duckbill one way valve