NIBCO Cap: 2 1/2 in CTS, Cup, Wrot Copper (MPN 617-21/2)
SKU 3G-OTH-472366
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a NIBCO 617-21/2 wrot copper cap used for?
This NIBCO 617-21/2 wrot copper cap is used to seal the end of a 2 1/2 in CTS copper tube in plumbing, HVAC, and industrial piping systems. It provides a permanent, leak-proof closure for copper lines carrying water, gas, or other non-corrosive fluids.
What are the specifications of the NIBCO 617-21/2 cap?
The NIBCO 617-21/2 is a cup-type wrot copper cap with a 2 1/2 in CTS connection. It is manufactured under part number 617-21/2 and is designed for sweat-soldering onto copper tubing. This fitting is suitable for use in potable water and hydronic heating systems.
Where to buy NIBCO 617-21/2 wrot copper cap worldwide?
3G Electric supplies the NIBCO 617-21/2 wrot copper cap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other NIBCO fittings.
How to install a NIBCO wrot copper cap?
To install a NIBCO wrot copper cap, clean the tube end and fitting cup with emery cloth, apply flux, assemble the cap onto the tube, and heat evenly with a torch until solder melts into the joint. Allow to cool naturally. Always follow local plumbing codes and use lead-free solder for potable water.
Used in
Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO wrot copper tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









