You may also like
20738 Viega ProPress coupling With stop Smart Connect technology Copper, 4'' x 4''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2
- Country Of Origin:
- Made In Germany
- Material Type:
- Copper
- Product Dimension:
- 4'' x 4''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Coupling
- Product Length:
- 4.681"
- Product Height:
- 4.681"
- Product Weight:
- 2.881 lbs
- Product Width:
- 5.787"
Viega 20738 – Frequently Asked Questions
1) Does the Viega ProPress 20738 coupling have a tube stop, and when would I want one without?
The 20738 is a 4 inch ProPress copper coupling made with a stop, meaning the internal bead keeps each pipe end from sliding past center. That is what you want on a normal joint because it sets insertion depth for you. On a repair where you have to slip the coupling over an existing fixed run and slide it back, you want a coupling without stop instead so the fitting can travel along the tube.
2) What size and type of pipe does the Viega 20738 coupling join?
It joins two 4 inch press ends, copper to copper, in a straight run. The connection is press on both sides (P1 x P2), so both ends get crimped with a press tool and jaw sized for 4 inch ProPress. There are no threaded or sweat ends on it.
3) What is Smart Connect on this Viega 4 inch coupling and why does it matter on a big job?
Smart Connect is Viega's unpressed-joint feature: if a connection gets missed during install, it leaks visibly at low pressure during the test so you find it before the walls close up. On a 4 inch main with a lot of joints, that is the practical reason contractors spec ProPress over sweat here.
4) Can I press this Viega coupling onto steel or PEX?
No. The 20738 is a copper press fitting and belongs on copper tube only. Viega's steel and PEX systems use different fittings and different sealing elements, so transitioning between materials takes a dedicated adapter, not this coupling.
How fast can I get the Viega 20738 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 Viega 20738 come with a warranty?
Absolutely. The Viega 20738 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 Viega 20738?
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 Viega 20738 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.