Systems & Components: Pressure Regulators
Excessive pressure can cause your plumbing to leak or even rupture.  It doesn't take long at high pressures to cause damage, even a fairly brief "spike" can do it.  Pressure regulators are installed in your water supply line to limit the water pressure going into your RV.  RV plumbing is normally rated at 125 psi, but you certainly don't need to use that much. However, 60-65 psi is a very comfortable pressure for faucets and showers.  Parks don't always have that much, but when they do, having a regulator designed for good flow and pressure adjustability will allow you to take advantage of that better pressure without creating a problem with standard RV plumbing systems.  Many higher end RV pumps that come on RVs have 65 to as much as 85 psi.   New RVs often have their plumbing systems tested to 100 psi, or so, during the manufacturing process, but we recommend regulating incoming pressure to around 60-65 psi to provide a very nice operating system.  OUR REGULATORS ALL COME EQUIPPED WITH BRASS HOSE FITTINGS, READY TO HOOK UP. More detailed information on regulators.
	Valterra Brass Regulator, 15-20% faster flow, 55 psi	$14.95	Buy It!
	Watts Brass Model H560 Adjustable Regulator; 0-60 range, 2-2.5 gpm	$59.95	Buy It!
	Watts H560 Regulator with a 1- 1/2" diameter 0-60 gauge, 2-2.5 gpm	64.95	Buy It!
	Watts Brass Model 263A  Adjustable Regulator, 10-65 range, 4-4.5 gpm	$64.95	Buy It!
	Watts Adjustable 263A Regulator, 2" diameter 0-160 gauge, 4-4.5 gpm	$69.95	Buy It!
	Watts Adjustable 263A Regulator, but with stainless steel parts kit listed below installed, 2" diameter 0-160 gauge, 4-4.5 gpm	$79.95	Buy It!
	Watts Adjustable 263A Regulator, but with 2 1/2" diameter stainless steel oil filled 0-160 gauge, 4-4.5 gpm	$79.95	Buy It!
	Watts Adjustable 263A Regulator, but with 2 1/2" diameter stainless steel oil filled 0-160 gauge with stainless steel parts kit listed below installed, 4-4.5 gpm	$89.95	Buy It!
	Stainless Steel Parts for 263A Regulator Upgrade from the standard zinc coated parts.	$10.00	Buy It!
	Stainless Steel Watts Adjustable 263A Regulator, 2 1/2" diameter w/oil filled stainless gauge.  External and internal parts are all stainless except for fittings.	$179.95	Buy It!
	Watts Brass Model N55B  Adjustable  Regulator, 25-65 range, 6-9 gpm	$74.95	Buy It!
	Watts Brass Model N55BG Adjustable Regulator, 1.5" diameter 0-160 gauge, 6-9 gpm	$79.95	Buy It!
	Watts Brass Model N55BG Adjustable Regulator, 2" diameter 0-160 all stainless oil filled gauge, 6-9 gpm	$89.95	Buy It!
	Pressure gauge mounted to hose swivel	$19.95	Buy It!
	Pressure gauge mounted to hose swivel.  This model is brass body with s/s oil filled gauge shown below.	$29.95	Buy It!
	Pressure gauge mounted to hose swivel.  This model is all stainless on both the hose swivel fitting and the oil filled gauge.	$39.95	Buy It!
	1 1/2" diameter pressure gauge with 0 to 60 psi, rear 1/8" mpt port. Replacement for Watts H560 regulator gauge.	$8.95	Buy It!
	1 1/2" diameter pressure gauge with 0 to 160 psi, rear 1/8" mpt port.	$8.95	Buy It!
	1 1/2" diameter pressure gauge with 0 to 160 psi, bottom 1/8" mpt port. Replacement for hose swivel gauge, or N55BG regulator.	$8.95	Buy It!
	2" diameter pressure gauge with 0 to 160 psi, bottom 1/8" mpt port. Replacement for hose swivel gauge, or N55BG regulator.	$8.95	Buy It!
	2" diameter pressure gauge with 0 to 60 psi, rear 1/8" mpt port. Replacement for Watts IR56 regulator gauge.	$8.95	Buy It!
	2" diameter pressure gauge 0 to 160 psi, rear 1/4" mpt port.  Replacement for Watts 263A regulator gauge.  Current model has chrome trim ring, instead of black.	$8.95	Buy It!
	2 1/2" diameter stainless steel oil filled pressure gauge 0 to 160 psi, rear 1/4" mpt port.  Upgrade gauge replacement for Watts 263A or any 1/4" application.	$19.95	Buy It!
	2" diameter stainless steel oil filled pressure gauge 0 to 160 psi, bottom 1/8" mpt port.  Upgrade gauge replacement for hose swivel body with gauge or N55BG, or any 1/8" application.	$19.95	Buy It!
	1 1/2" diameter pressure gauge 0 to 160 psi, rear 1/8" mpt port.  This is a flat faced gauge made for RO.	$8.95	Buy It!
Rebuild kit for Watts H560		$11.95	Buy It!
Rebuild kit for Watts H560 with springs		$15.95	Buy It!
Rebuild kit for Watts IR56		$19.95	Buy It!
Rebuild kit for Watts 263A		$19.95	Buy It!
Rebuild kit for Watts N35B		$19.95	Buy It!
Rebuild kit for Watts N55B		$19.95	Buy It!

What's The Difference From One Product to Another?
Assuming they all work as designed, why choose one over another?   The answer comes down to flow.  The bigger the regulator, the more water it will pass. Below, we include flow measurements we made on each regulator. The low figure was when the regulator was set for 40 psi, and the higher figure was when set for 60 psi.

Our Line of Pressure Regulators
We sell a complete line of regulators, all ready to install it in your system. Just take it out of the box and hook it up!

The lowest rung on the regulator ladder is occupied by small, in-line regulators. The brass unit is one typically included with your RV and sold in many RV supply houses. It has tiny orifices that the water must pass through and seriously restricts the overall water flow to your coach. This unit comes with a preset maximum pressure of 45 psi that cannot be changed.

The next step up is a slightly larger regulator made by Watts, a well-known supplier of industrial pressure regulators. This brass model, the H560, can be adjusted to change the pressure limit, and is available with an optional pressure gauge to enable you to monitor the regulated supply pressure. It is compact and offers good flow at higher park pressure and less flow at low park pressures. We got flows of 2 to 2.5 gpm with this regulator.

Similar to the H560, but an improved model is the Watts IR56. This unit has a little better flow than the H560, and it gave us 3 to 3.5 gpm in our test. It also seems to be more immune to clogging than the H560, so over time, it will require a little less maintenance.  THIS REGULATOR IS NOW DISCONTINUED BY WATTS, BUT THE REBUILD KIT AND GAUGE IS STILL AVAILABLE.

An industrial  regulator with larger orifices for better flow is the Watts Model 263A. This brass unit also offers an adjustable pressure limit and is available with a pressure gauge. Because of its size and lighter weight, it is our most popular model and it produced a flow of 4 to 4.5 gpm in out test.

The top-of-the-line regulator is another Watts unit, Model N55B. It provides the best flow rate of all and is well-built of brass. In our tests it produced a flow rate of 6 to 9 gpm.  A home style regulator suitable for mobile homes, cabins and RVs, it is larger and heavier than the other models, but the most durable of all.

All of these Watts regulators can be disassembled for cleaning and rebuild kits are available to keep them operating for many years.