Watts 1/2 in. Cast-Brass SWT x SWT Water Pressure Regulator-S1156 at The Home Depot
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Model # S1156

Internet # 100580241

Store SKU # 748555

1/2 in. Cast-Brass SWT x SWT Water Pressure Regulator

Watts 1/2 in. Cast-Brass SWT x SWT Water Pressure Regulator

This item has been discontinued.
The Home Depot no longer carries this specific product.

$45.55 / each
Item cannot be shipped to the following state(s): AK,GU,HI,PR,VI


Model # S1156

Internet # 100580241

Store SKU # 748555

The Watts 1/2 in. Cast-Brass SWT x SWT Water Pressure Regulator features high-capacity performance and unitized construction for ease of maintenance. The regulator has a maximum working pressure of 100 psi.

  • Cast-brass unitized construction is long lasting and offers easy maintenance
  • Dual controls for easy use with hot water boilers
  • Use on boiler feed lines to provide make-up water to the system
  • 100 Psi maximum working pressure
  • High-capacity performance
  • Note: Product may vary by store.

Info & Guides

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Assembled Depth (in.)  2.625 in  Assembled Height (in.)  4.5 in 
Assembled Width (in.)  2.08 in  Compatible Pipe Material  Copper type M hard temper 
Connection  Sweat x Sweat  Manufacturer Warranty  Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. 
Material  Brass  Maximum Pressure (psi)  100 
Maximum Working Temperature (F)  212  Pipe or Fitting Product Type  Valve 
Product Height (in.)  2.625  Product Length (in.)  6.313 in 
Product Weight (lb.)  2.08 lb  Product Width (in.)  4.5 in 
Rating  Water  Returnable  90-Day 
Valve Inlet Diameter (in.)  .5  Valve Outlet Diameter (in.)  .5 


Rated 3.7 out of 5 by 3 reviewers.
Rated 1 out of 5 by Product is worthless. This was the 4th time I had to install this product. Pressure level kept varrying. February 25, 2014
Rated 5 out of 5 by Watts 1/2 in. Cast Brass SWT x SWT Pefect Replacement I bought this water pressure regulator to replace the broken one on my furnace. It came with the gasket used on the larger side. The swap was very easy, took all of 5 minutes, a perfect fit without any issues. You will only need some tape dope for the nipple that threads into one side, so make sure you have some before you start. I would have included photos but doesn't seem like it would be a benefit. December 25, 2013
Rated 5 out of 5 by It's what I needed. The one I had clogged with rust and stopped working. Installation was easy. Unscrew the old one, screw on the new one. Back to normal. It was shipped to my home at no extra charge. April 23, 2013
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