Simple Screw Installation:It can be used on a variety of models, such as RV ,Camper ,Trailer,Caravan, Cars.
9mm Water Tank Vent: Diameter 9mm air vent, reverse venting design prevent the formation of vacuum water tank, easily adding water.
Silicone Dustproof Cover: Designed with a dustproof cover, clean and convenient.
78mm Gravity Water Fill Hatch Inlet: Made of durable plastic shell and stainless steel inner core, aging resistance, good toughness, not easy to crack.
With Locking Keys: Lockable, with 2 keys to prevent others from opening the filling port.