3539-10 Quick Connect Straight Stop Valve, 1/2 X 1/2 In.

The Watts 3539-10 Quick Connect Straight Stop Valve is a push-to-connect fitting designed for straightforward plumbing installations and repairs. This valve allows you to connect PEX, copper, or CPVC pipes without tools—simply cut the pipe and push the tubing into the fitting until it seats, then pull back the ring to disconnect. It eliminates assembly hassles and loose parts, making it ideal for new installations, repairs, and replacement projects where speed and reliability matter.

The quick-connect design provides a tool-free installation method that saves time on the job and simplifies do-it-yourself plumbing work. Whether you're replacing existing fittings or tackling new construction, this valve offers straightforward functionality without the need for specialized installation equipment.

Features and Benefits

• Push-to-Connect Design: Hand-tighten tubing with no tools required, reducing installation time and complexity.
• High-Performance Material: Made from polysulfone, a durable thermal plastic that resists corrosion and is designed for years of trouble-free service.
• 250 PSI Rated: Capable of handling high water pressure demands.
• Works with Multiple Pipe Types: Compatible with PEX, copper, and CPVC pipes; serves as an excellent replacement for Qest and Flare It type fittings.
• Vibration Resistant: The design adapts to applications with vibration without compromising flow.

Specifications

• Brand: Watts
• Model: 3539-10
• Connection Size: 1/2 in. x 1/2 in.
• Connection Type: Sweat
• Pressure Rating: 250 PSI
• Body Material: Polysulfone plastic
• Color: Off white