RV City Water Inlet with Check Valve

Boltigen RV City Water Inlet with check valve is a lead-free brass replacement inlet that connects 3/4" NH (GHT) city hoses to a 1/2" NPT RV plumbing line while preventing backflow and keeping contaminants out.

Replace or upgrade your RV's external water fill with a durable, corrosion-resistant inlet flange designed for repeated outdoor use. This unit pairs a 3/4" NH (GHT) female connection with a 1/2" NPT male thread and includes a flexible rubber dust cap. Built from lead-free brass with a sturdy white metal flange, the Boltigen inlet is engineered to reduce leaks, resist weathering, and block backflow into your fresh water system.

How does this inlet prevent backflow into my RV's fresh water system?

The integrated check valve stops water from flowing backward into your RV plumbing when pressure drops or hoses are disconnected. That physical barrier helps keep contaminants and stagnant hose water from re-entering your onboard tanks or pipes. It is a passive mechanical device — no power or moving electronics required — so it works reliably with standard city water hookups.

• Built-in check valve blocks reverse flow and contamination
• Lead-free brass resists corrosion and maintains potable water safety
• Simple threaded connection fits common RV plumbing standards

Will this fit my RV and standard campground hoses?

Yes — the inlet uses a 3/4" NH (GHT) female fitting for standard garden or city water hoses and a 1/2" NPT male thread to mate with typical RV supply lines. The flange and knob design give good grip for hand-tightening and secure hose attachment. Confirm your RV's existing inlet thread and supply line size before ordering to ensure compatibility.

• 3/4" NH (GHT) female accepts standard campground hoses
• 1/2" NPT male thread connects to most RV internal plumbing
• Includes rubber dust plug to protect inlet when unused

How durable is the Boltigen inlet for outdoor and seasonal use?

Constructed from lead-free brass with a metal white flange, this inlet resists corrosion, temperature changes, and the wear of repeated hookups. The rubber dust cap protects the threads and sealing surfaces from dirt, insects, and UV exposure when stored. Boltigen inspects each unit before shipment to ensure parts and seals meet quality standards.

• Lead-free brass material for long-term potable water safety
• Metal flange and corrosion-resistant finish for outdoor exposure
• Replaceable rubber dust plug protects the connection point

How do I install or replace this inlet on my RV?

Installation is straightforward for anyone comfortable with basic RV plumbing: remove the old inlet, apply appropriate thread sealant or tape to the 1/2" NPT male threads, then hand-tighten and secure the flange. Check for leaks after connecting a garden hose and turn on water slowly. If you prefer, have an RV technician perform the swap for a guaranteed seal and proper mounting.

• Remove old inlet and clean mounting surface
• Apply thread sealant or PTFE tape to male threads
• Hand-tighten inlet, then pressure-test for leaks

Who is this for: RV owners, trailer and camper renovators, or marine enthusiasts who need a reliable city water inlet replacement that prevents backflow and protects potable water. It suits people looking for a durable, lead-free brass part that matches common campground hose connections and simplifies seasonal maintenance.