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White quarter-turn supply stop valve with push-to-connect outlet

Watts

Watts 3539RB-1004 Quarter-Turn Reducing Supply Stop trap

SKU CH-G9DZ-3FVY1 MPN 3539RB-1004

Quarter-turn reducing supply stop with 1/2-inch CTS inlet and 1/4-inch push-to-connect outlet rated to 250 psi and 180 °F

  • TypeDrain Components
  • ColorNatural Birch Wood
  • Quarter-turn operation enables fast water shut-off
  • 250 psi rating handles high-pressure supply lines
  • Polysulfone body resists corrosion and scale build-up
  • NSF 14 and 61 certified for potable water safety
  • Push-to-connect outlet simplifies 1/4 in tubing installation

Quarter-Turn Reducing Supply Stop

The Watts 3539RB-1004 is a quarter-turn reducing supply stop designed for plumbing installations. It features a 1/2 inch CTS inlet and a 1/4 inch push-to-connect outlet for straightforward connections. The body is constructed from polysulfone material in a natural finish.

Suited for standard supply line reductions

This valve suits installers needing a compact stop with a 1/2 inch inlet and 1/4 inch outlet. It meets ASTM F877, CSA B137.5, NSF 14 and 61, and IAPMO IGC 188-2004c standards for potable water use. Builders requiring a different outlet size or inlet type should look at other configurations.

250 psi maximum pressure rating

The stop is rated for a maximum working pressure of 250 psi. Its operating temperature range spans 0 to 180 degrees Fahrenheit. These limits determine whether the component matches the specific demands of the plumbing system.

Highlights

  • Quarter-turn operation enables fast water shut-off
  • 250 psi rating handles high-pressure supply lines
  • Polysulfone body resists corrosion and scale build-up
  • NSF 14 and 61 certified for potable water safety
  • Push-to-connect outlet simplifies 1/4 in tubing installation

Specifications

TypeDrain Components
ColorNatural Birch Wood
BrandWatts
Model3539RB-1004

Questions about this item

What size CTS inlet and push-to-connect outlet does the 3539RB-1004 use?

The stop valve has a 1/2 inch CTS inlet and a 1/4 inch push-to-connect outlet.

How do I install the push-to-connect outlet on the 3539RB-1004, and what step is often missed?

Cut the tube square, deburr it, then push it firmly into the outlet until it seats against the internal stop; the step often missed is verifying the tube is fully seated by pulling back gently.

Which certifications on the 3539RB-1004 confirm it is safe for potable water?

The valve carries NSF 14 and NSF 61 certification, plus FDA approval and IAPMO IGC 188-2004c certification for drinking-water contact.

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