RV Water Pressure Regulator Spec Comparison
The measured baseline for RV water pressure regulators across 60 listings — rated pressure, connection size and port count. It is the only category on this site whose signature specification comes substantially from structured data, and the one where a single figure in the table turns out to separate nothing at all.
The category baseline
60 listings, of which the following carried usable data.
| Specification | Products with data | Coverage | P25 | Median | P75 |
|---|---|---|---|---|---|
| Rated pressure (psi) | 44 | 73% | 50 | 134 | 160 |
| Connection size (mm) | 36 | 60% | 19.05 | 19.05 | 20.64 |
| Ports | 32 | 53% | 2 | 2 | 2 |
| Weight (kg) | 32 | 53% | 0.16 | 0.33 | 0.59 |
Two columns that separate nothing
Connection size is 19.05 mm at both the 25th percentile and the median — 3/4 inch, standard garden hose thread — with the 75th percentile at 20.64 mm, which is the same thread measured to a different reference. Port count is 2 at every quartile: an inlet and an outlet.
Neither figure is useless, but both are compatibility checks rather than comparisons. If a regulator in this category states something other than 3/4 inch GHT, that is the specification worth noticing precisely because it is unusual. Otherwise these two rows tell you the category is standardized and move you on to the one that matters.
The pressure column is two different quantities
This is the important finding on the page, and it explains a distribution that otherwise looks strange: a 25th percentile of 50 psi against a median of 134.
Those are not the same measurement. Around 50 psi is a regulated output — what the device delivers downstream, which is the number that protects your plumbing. Around 134 psi is a maximum inlet or body rating — what the device can survive on its supply side, which tells you nothing about what it delivers. Both are legitimate manufacturer figures and both land in the same field, so the quartiles above span two populations rather than describing one.
Read a specific product’s own page for which number it is quoting. A regulator advertising a figure well above 100 psi is almost certainly stating what it withstands, not what it gives you — and a device delivering that pressure to an RV would be the hazard the category exists to prevent.
Adjustable regulators complicate this further: they publish a range rather than a point, and the extractor takes a single value from it. Where adjustability matters to you, treat the figure here as an indication that the product exists in the category rather than as its setting.
Why regulated output matters more than any other spec here
RV plumbing is not household plumbing. Fittings, flexible lines and appliance connections in a rig are built for pressures well below what a municipal supply or a campground pedestal can deliver, and a pedestal’s pressure is not something you can predict or control. A failure is not a slow drip — a burst line inside a wall or under a floor releases water continuously into a structure built from materials that do not tolerate it.
That is the whole argument for a regulator, and it is why the delivered-pressure figure is the only one in the table with real decision weight.
We cannot tell you what pressure your rig should run at. That comes from your RV’s own documentation, and it varies by manufacturer, by plumbing material and by age. Nothing on this page is a safe-pressure recommendation.
The Products These Figures Come From
Of the 60 regulators in this category, 9 publish every figure in the baseline above. All 5 are listed by price tier, then alphabetically — this is not a ranking, and a product appearing here means its listing is complete, nothing more. 4 listings are held back for a published figure far outside the category’s own range — a data defect rather than an unusual product.
| Product | Brand | Price Tier | Rated pressure (psi) | Connection size (mm) | Ports | Weight (kg) | Key Details |
|---|---|---|---|---|---|---|---|
 Camco RV Water Heater Temperature and Pressure Valve |
Camco | <$30 | 150 | 12.7 | 2 | 0.25 | Blend, Brass · Blend, Brass · 1/2 inch |
 Gickbusus RV Water Pressure Regulator with Pressure Gauge |
Gickbusus | <$30 | 58 | 19.0 | 2 | 0.59 | Leadless Brass · Leadless Brass · 0.75 inches |
 Kohree Adjustable RV Water Pressure Regulator for RV Camper |
Kohree | <$30 | 160 | 19.0 | 2 | 0.31 | Brass · Brass · 3/4” |
 Valterra RV Hi-Flow Water Regulator |
Valterra | <$30 | 55 | 19.0 | 2 | 0.21 | Brass · Brass · 3/4 inches |
 Shurflo by Pentair Pressure Reducing City Water Entry… |
SHURFLO | $30-75 | 65 | 12.7 | 2 | 0.13 | Metal · Metal · Threaded |
Key Details are the listing’s own structured specification rows — material type, material, thread size — reproduced as published.
Notes on the Products at the Edges
Most of the products above sit inside the interquartile range on every figure, which is what the baseline already describes. These are the ones it does not: each is outside P25 or P75 on at least one published figure. The position is computed from the category statistics; the explanation is what the listing itself states.
Camco RV Water Heater Temperature and Pressure Valve — Camco, <$30
Connection size of 12.7 mm sits below the category P25 of 19.1 mm. Not a city-water regulator at all: the listing describes a water heater temperature and pressure relief valve, factory preset to 150 PSI and 210°F on 1/2 inch NPT fittings.
Shurflo by Pentair Pressure Reducing City Water Entry… — SHURFLO, $30-75
Connection size of 12.7 mm sits below the category P25 of 19.1 mm. A wall-mounted city-water entry rather than an inline hose regulator; the listing specifies a pressure-reducing check valve with a threaded inlet and outlet.
Specifications are the manufacturer’s published values as scraped for this corpus, not our own measurements — the same source, and the same limits, as the baseline above. Prices move daily, so we show the tier rather than an amount. Links to Amazon are affiliate links.
What this category does not publish
Flow rate in gallons per minute is the specification most conspicuously absent, and it is the one that decides whether a regulator protects your plumbing at the cost of an unusable shower. A high-flow regulator and a basic brass one can carry identical pressure figures and deliver very different experiences. Adjustability, gauge inclusion, lead-free certification and body material are similarly inconsistent or missing.
Nothing above is a recommendation, a ranking or a test result. We do not own an RV and we do not install this equipment. The method, including both gates, is on comparison methodology.
Common questions
Why is the median pressure 134 psi when RVs need far less?
Because that figure is a maximum inlet or body rating on many listings rather than a delivered output. The field mixes both. A regulator that delivered 134 psi to a rig would be causing the problem it is sold to prevent.
Do I need an adjustable regulator?
It depends on whether you want to trade some flow for a lower delivered pressure at a given site, which is a preference rather than a specification question. This corpus does not publish adjustability consistently enough for us to compare it.
Will any regulator fit my hose?
Almost certainly — connection size is 3/4 inch garden hose thread across every quartile of this category. If a product states otherwise, that is worth a second look.
Do you rank these regulators?
No. This page publishes a distribution, and in this category it publishes a warning about how to read one of its own columns.