Forespar MF 844 Vented Loop - 1" [903016] Brand_Marine Formula by DeBond Corporation By adjusting automatically to changing

By adjusting automatically to changing environmental and sea conditions

Kroil Penetrant with Graphite is a unique blend of oils

41 oz  (295 g)

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90-95% less off-state current compared to competitive products and system solutions that require multiple devices for similar functionality

Forespar MF 844 Vented Loop - 1" [903016] Brand_Marine Formula by DeBond Corporation By adjusting automatically to changingMF 844 Vented Loop 1" Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in marine toilet and engine cooling systems. The simple valve system incorporated in the top of the loop allows air to enter the line when not used, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither the vent nor the loop will corrode. The duckbill one way valve is