Forespar MF 840 Vented Loop - 1-1/2" [903000] Clear Protects your engine from freezing

Protects your engine from freezing in engine compartments up to 80ft3 by utilizing an internal sealed thermostat to turn the heater on at 41°F (5°C)

and a variety of other items that need to be secured while in use

Works with the ACR GlobalFix™ V4 (RLB-41)

Black Plastic Housing

UPC: 9416325165071

Forespar MF 840 Vented Loop - 1-1/2" [903000] Clear Protects your engine from freezingMF 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