UNIVERSAL FIT 4.5” DIAMETER GRAVITY FEED FRESH WATER FILL HATCH INLET - Designed specifically for gravity feeding RV trailer fresh water tanks, these fill hatches can fit into 3.5-inch cutouts. Each pack contains 2 pieces of freshwater fill hatch 1-1/4” BARBED CONNECTOR - Actual barbed connector has two stages accepting fill hoses with inner diameters between 1-1/4 inches and 1-3/8 inches BAYONET-STYLE CAP WITH TETHER - Bayonet-style caps are easier to screw on and off while still providing a secure fit. Made from the same material as the hatch and cap, the cap tether ensures ‌you won’t lose the fill cap ever FILL FASTER WITH 1/2” AIR VENT - Enhance gravity feeding efficiency with fill hatches that come with venting. The 1/2-inch air vent/overflow on the hatch will increase the flow rate by preventing air locks MADE OF UV-STABILIZED PLASTIC - Replace yellowed fill hatches with these UV-stabilized plastic hatches. UV-stabilized plastic lasts longer because of added stabilizers that absorb UV radiation to prevent damage from long-term UV exposure

More Efficient Fill Rates with the Built-In Air Vents

Does filling your fresh water tank take forever? Or do you have an issue with water flowing back out? If you have these issues, the built-in air vent on these fill hatches will save the day. Just connect to a vent hose. There’s no need for DIY fixes that may cause more issues in the long run.

Easy to Install Gravity Feed Fresh Water Fill Hatch Inlet

These are universal-fit freshwater intake hatches. They fit on standard 3.5-inch fill port cutouts and have 3 equidistant mounting holes. Most often, drilling new mounting holes is unnecessary.

Note that this fill hatch pack only includes 2 pieces of white plastic fresh water fill hatch inlet. You may need to purchase or reuse the existing mounting hardware.