Forespar MF 840 Vented Loop - 1-1/2" [903000] Restricted From 3rd Party Platforms Attwood's highest capacity pump

Attwood's highest capacity pump

Raritan's water heaters use an ignition protected thermostat

UPC: 839494001619

As well as triggering the alarm

Use with Ø 30 P3000 and 9 μ micro abrasive

Forespar MF 840 Vented Loop - 1-1/2" [903000] Restricted From 3rd Party Platforms Attwood's highest capacity pumpMF 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