Campground water pressure can vary, and an RV's plumbing may need a regulator at the city-water connection. Valterra offers standard fixed-pressure models, higher-flow 50–55 PSI versions, an adjustable regulator with a gauge, and a separate gauge for checking incoming pressure. A gauge reads pressure; it does not lower it. Choose a regulator that meets the RV manufacturer's inlet-pressure limit and matches the connection arrangement.
| Part number | Rated pressure | Style | Features |
|---|---|---|---|
| A01-1120VP | 40–50 PSI | Fixed pressure | Lead-free brass; no gauge |
| A01-1122VP | 50–55 PSI | Fixed high-flow | Brass; screened inlet washer; no gauge |
| A01-1114VP | 50–55 PSI | Fixed high-flow | 304 stainless steel; no gauge |
| A01-1117VP | Factory set 45 PSI | Adjustable | Built-in pressure gauge; screened washer |
| A01-1124VP | 40–50 PSI | Fixed pressure + gauge | Brass; integrated gauge |
| A01-2222VP | 50–55 PSI | Fixed 90° high-flow | Brass elbow; screened washer |
For a standard fixed-pressure connection, A01-1120VP regulates to 40–50 PSI without an adjustment control or gauge. A01-1124VP is also rated 40–50 PSI but includes a gauge. The higher-flow A01-1122VP and stainless-steel A01-1114VP are rated 50–55 PSI; a higher rating is not automatically appropriate for an older RV or a plumbing system with a lower allowable pressure.
The A01-1117VP adjustable brass regulator includes a gauge and is factory set to 45 PSI. Valterra advises against setting it above 60 PSI, and the RV's own limit may be lower. The A01-2222VP combines a 90-degree fitting arrangement with a 50–55 PSI high-flow design; check its orientation and follow Valterra's warning for older RVs.
A non-adjustable lead-free brass regulator for a compatible RV city-water connection. Valterra specifies a regulated 40–50 PSI range; check that this is within your RV's permitted inlet pressure.
View A01-1120VP
A higher-pressure, high-flow regulator rated 50–55 PSI, with the screened inlet washer and easy-grip fitting Valterra specifies. Choose this only when the RV's plumbing is approved for that supply pressure.
View A01-1122VP
The 304 stainless-steel high-flow model regulates incoming city-water pressure to 50–55 PSI. Its material differs from the brass A01-1122VP even though both have the same listed regulated pressure range.
View A01-1114VP
A brass adjustable regulator with a built-in gauge, factory-set to 45 PSI. Valterra advises not to set it above 60 PSI; always follow the lower limit required by the RV manufacturer.
View A01-1117VP
A brass 40–50 PSI regulator with a built-in gauge for observing water pressure. Unlike the adjustable A01-1117VP, this model has a fixed regulated range.
View A01-1124VP
A 90-degree high-flow regulator for compatible city-water hookups. Valterra does not recommend this 50–55 PSI model for older RV plumbing. Check both the original fitting orientation and your RV's maximum safe inlet pressure.
View A01-2222VP
This mechanical dial measures water-line pressure. It does not lower or control the pressure supplied to the RV. Use it when you need a reading, then select a separate regulator if needed.
View A01-0110VP gaugeUse this simplified connection reference to identify the components. It is not a wiring or plumbing diagram for a specific RV model.
The source pressure may differ by location or time of day.
A correctly rated regulator reduces incoming supply pressure.
Connect a suitable drinking-water hose using the matching fittings.
Water enters the RV's pressurized plumbing through its designated inlet.
A separate pressure gauge may be used to check the supply. Connect hoses and fittings according to their instructions, protect the water system against backflow, and do not confuse a pressure regulator with a check valve.
For the RV-side connection, see our Valterra gravity and city-water inlet hatch comparison. It explains how pressurized city-water connections differ from gravity-fill openings and how to match their wall cutouts and plumbing.
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