Forespar MF 840 Vented Loop - 1-1/2" [903000] Marine Safety | Flotation Coats/Pants Angled grooves produce hydrodynamic channels

Angled grooves produce hydrodynamic channels

Just be sure to test a small area first to be sure FSR will not damage finish

The heat and circulation prevent stale air pockets which in turn prevent mold or mildew from forming on the interior surface of the boat

Circumference: 28"

Heavy duty ruggedization with wide temperature range

Forespar MF 840 Vented Loop - 1-1/2" [903000] Marine Safety | Flotation Coats/Pants Angled grooves produce hydrodynamic channelsMF 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