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Product Specs
- Brand Name:
- Watts
- Brass Insert:
- No
- Fitting Name:
- Connector
- Inlet Connection Size:
- 3/4 IN
- Inlet Connection Size Metric:
- 20 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-1412
- O Ring Material:
- EPDM
- Outer Diameter:
- 1 3/8 IN
- Outlet Connection Size:
- 3/4 IN
- Outlet Connection Type:
- Male Threaded
- Outlet Material:
- Polysulfone
- Outlet Thread Type:
- NPT
- Part Number:
- 650178
- 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-1412 – Frequently Asked Questions
1) What does the Watts 3501B-1412 connector join together?
It takes 3/4 inch CTS tubing on the quick connect end and converts it to a 3/4 inch male NPT thread on the other end. So it is the transition fitting between push-fit plastic supply tubing and any female NPT port, such as a valve, manifold tap, or appliance inlet.
2) Will the Watts 3501B-1412 push-fit connector hold on a 250 psi domestic water line?
Rated to 250 psi (17.2 bar) maximum working pressure, which is well above any normal building domestic water pressure. Temperature ceiling is 180 F (82 C), so it handles typical hot water service as well.
3) Can I use the 3501B-1412 connector on a gas line?
No. The 3501B-1412 is not suitable for gas service. It is a water-service fitting only. For fuel gas you need a fitting specifically listed for gas.
4) Is this Watts male connector lead free for potable water?
Yes, the 3501B-1412 is lead free. The body is polysulfone plastic with no brass insert, so there is no leaded brass in the waterway at all, and the seal is EPDM.
5) Is the Watts 3501B-1412 plastic or brass, and does that matter for my install?
Both the inlet and outlet are polysulfone, a rigid engineering plastic, and there is no brass insert in the threaded end. That means you tighten the male NPT by hand plus a modest turn with tape or approved sealant, not with a long wrench the way you would on a brass nipple. It also means no dezincification concerns on aggressive water.
6) Does the 3/4 CTS end fit metric 20 mm tubing?
The quick connect end is sized 3/4 inch CTS, listed as 20 mm metric equivalent. It is the same opening described two ways, not two separate sizes, so order it for 3/4 inch nominal copper tube size plastic or copper tubing.
7) I need to order the Watts 3/4 CTS by 3/4 MPT plastic connector by part number, what do I ask for?
Model 3501B-1412 from the Watts 3501B series, manufacturer part number 650178. There is one configuration, so no finish or size options to specify.
8) What is the lowest temperature the Watts 3501B push-fit connector is rated for?
The rated range bottoms out at 75 F (24 C) and tops out at 180 F (82 C). Keep that in mind for unconditioned spaces, and never let the line freeze.
How fast can I get the Watts 3501B-1412 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
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-1412 come with a warranty?
Absolutely. The Watts 3501B-1412 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-1412?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Watts 3501B-1412 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.