TMC Marine Vented Loop, 3/4" Hose - FO2420
Material: Marine-grade ABS Plastic
Hose ID: 3/4 inches (19mm)
Features: Corrosion and abrasion resistant
PRODUCT NUMBER: FO2420
Used it with my Saniflo Marine toilet in my RV.
works great and very good price than any local marine boat store
Great vent for my water supply and affordable