Forespar MF 844 Vented Loop - 1" Circuit Breakers They are built with heavy-duty

They are built with heavy-duty copper sweep contacts to ensure positive circuit control

360° light visibility for use on boats up to 65

** As the FCC requires all units sold in the US to be programmed by a qualified technician

77 dB - 80 dB buzzer

Forespar MF 844 Vented Loop - 1" Circuit Breakers They are built with heavy-dutyMF 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