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Product Specs
- Brand Name:
- Watts
- Brass Insert:
- No
- Fitting Name:
- Connector
- Inlet Connection Size:
- 1/2 IN
- Inlet Connection Size Metric:
- 15 MM
- Inlet Connection Type:
- Quick Connect
- Inlet Material:
- Polysulfone
- Lead Free:
- Yes
- Maximum Working Pressure Bar:
- 17.2
- Maximum Working Pressure Psi:
- 250
- Maximum Working Temperature Celsius:
- 82
- Maximum Working Temperature Fahrenheit:
- 180
- Minimum Temperature Celsius:
- 24
- Minimum Temperature Fahrenheit:
- 75
- Model Number:
- 3501B-1008
- O Ring Material:
- EPDM
- Outer Diameter:
- 1 1/8 IN
- Outlet Connection Size:
- 1/2 IN
- Outlet Connection Type:
- Male Threaded
- Outlet Material:
- Polysulfone
- Outlet Thread Type:
- NPT
- Part Number:
- 650175
- Series:
- 3501B
- Suitable For Gas Service:
- No
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Valves
- Product Type:
- General Valve
- Product Finish:
- Polysulfone
- Product Material:
- Polysulfone
Watts 3501B-1008 – Frequently Asked Questions
1) What size tubing and thread does the Watts 3501B-1008 quick connect male adapter take?
The 3501B-1008 takes 1/2 inch CTS tubing on the push-fit side and terminates in a 1/2 inch male NPT thread. CTS is copper tube size, so the 1/2 inch inlet accepts 1/2 inch nominal CTS tube, which is 5/8 inch actual outside diameter. Metric equivalent on the inlet is 15 mm.
2) Can I use the Watts 3501B push-fit connector on a hot water line?
Yes, up to 180 F (82 C) at a maximum working pressure of 250 psi (17.2 bar). That covers normal domestic hot water. The seal is an EPDM O-ring, and the body is polysulfone.
3) Is the Watts 3501B-1008 connector approved for gas lines?
No. The 3501B-1008 is not suitable for gas service. It is a potable water fitting only, and it is lead free. For a gas connection you need a fitting rated for gas, not this polysulfone push-connect.
4) Will a 1/2 inch Watts quick connect fitting work on CPVC and PEX, or only copper?
The inlet is a 1/2 inch CTS push-fit socket, so it accepts tube made to copper tube size at 1/2 inch nominal. PEX and CPVC in 1/2 inch CTS share that same outside diameter, which is why the fitting is specified by CTS rather than by material. PEX needs the manufacturer's stiffener; confirm the tube you have is CTS dimensioned before pushing it in.
5) Is this Watts connector lead free for potable water in a multi-family or healthcare building?
Yes, the 3501B-1008 is lead free, and the wetted parts are polysulfone with an EPDM O-ring, so there is no brass in the water path at all.
6) What is the body diameter of the Watts 3501B-1008 connector for tight-clearance work?
Outer diameter is 1-1/8 inches. That is the figure to check when you are fitting behind a toilet, under a lav, or inside a stud bay where a push-fit collar can foul against framing or a cabinet back.
How fast can I get the Watts 3501B-1008 delivered?
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Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Watts 3501B-1008 come with a warranty?
Absolutely. The Watts 3501B-1008 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Watts 3501B-1008?
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