Forespar MF 844 Vented Loop - 1" [903016] Sailing | Accessories Upgrade your Scanstrut Junction Box

Upgrade your Scanstrut Junction Box to IP67 Waterproof standard

Airmar CM599LHW 1-3kW Pocket Mounted Transducer

x4 Raynet Ethernet ports for connecting Raymarine devices

Take remote control of your Simrad RS40 VHF radio

Complete air and green water shut-off from below

Forespar MF 844 Vented Loop - 1" [903016] Sailing | Accessories Upgrade your Scanstrut Junction BoxMF 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