Jabsco 1 1/2" Vented LoopEngineered for reliability, the Jabsco 1 1 2" Vented Loop delivers anti siphon protection for marine toilets installed below the waterline. Suitable for both manual and electric toilets, it prevents backflow in static or heeled conditions, helping to maintain sanitation and safety on your vessel. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other