
Valterra A01-1120VP
Standard fixed brass regulator: Lead-free brass, orange hand-grip, carded standard-flow model.
View this regulatorA campsite water supply can deliver more pressure than an RV's freshwater plumbing is designed to handle. Valterra makes several regulator styles, including fixed 40–50 PSI models, higher-flow 50–55 PSI models, gauge combinations and a user-adjustable design. The right choice depends on the RV manufacturer's allowable water pressure, desired hose arrangement and whether you need an adjustment or gauge.
Use the published regulator rating below, rather than the colour or shape of the fitting, to compare these models. The listed output ranges describe regulated water pressure—not an instruction to increase the RV's plumbing pressure to that value.
| Valterra MPN | Pressure setting | Regulator design | Gauge? | Distinguishing feature |
|---|---|---|---|---|
| A01-1120VP | 40–50 PSI | Fixed | No | Standard fixed brass regulator |
| A01-1122VP | 50–55 PSI | Fixed, high flow | No | High-flow fixed brass regulator |
| A01-1114VP | 50–55 PSI | Fixed, high flow | No | High-flow stainless-steel regulator |
| A01-1124VP | 40–50 PSI | Fixed | Yes | Fixed brass regulator with gauge |
| A01-1117VP | User-adjustable | Adjustable | Yes | Adjustable brass regulator with gauge |
| A01-2222VP | 50–55 PSI | Fixed, high flow | No | 90-degree high-flow brass regulator |
Are A01-1120VP and A01-1122VP the same regulator? No. The first is Valterra's standard 40–50 PSI model; the second is a high-flow 50–55 PSI model.
Does the gauge on A01-1124VP allow pressure adjustment? No. A01-1124VP has a gauge but uses fixed regulation. A01-1117VP is the adjustable model in this comparison.
Will a 50–55 PSI regulator improve every RV shower? Not necessarily. Available campground supply pressure, fixture restrictions, hose and filter flow, and the RV pressure limit all affect the result.
Open each model to review current availability, packaging and the precise fitting arrangement before ordering.

Standard fixed brass regulator: Lead-free brass, orange hand-grip, carded standard-flow model.
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High-flow fixed brass regulator: Lead-free brass, carded high-flow version; Valterra lists 15–20% greater flow than its standard regulators.
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High-flow stainless-steel regulator: 304 stainless-steel body and high-flow construction; manufacturer lists 15–20% more flow than standard regulators.
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Fixed brass regulator with gauge: Brass gauge-combination model for a regulated 40–50 PSI water supply; not a user-adjustable pressure control.
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Adjustable brass regulator with gauge: Flathead-screwdriver adjustment with readable pressure gauge and screened inlet washer; Valterra advises checking the RV manual and not exceeding 60 PSI.
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90-degree high-flow brass regulator: Angled design helps direct the hose from a water connection; Valterra does not recommend this higher-pressure regulator for older RVs.
View this regulatorTo compare another manufacturer, see our Camco fixed and adjustable regulator guide. If you are matching the RV's city-water fitting, use the Valterra water-inlet comparison. For leaks at washers and check valves, consult the city-water leak identification guide.
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