

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Matco-Norca CUN05 is a 1 inch wrot copper union designed for sweat-style copper pipe connections. This fitting uses a copper by copper (C x C) end configuration, meaning both sides accept standard copper pipe joined by soldering. Wrot copper fittings are wrought from solid copper stock, which gives them a denser, stronger grain structure compared to cast copper. That difference matters in high-pressure and high-temperature applications where joint integrity is critical.
Unions are an essential fitting type for any plumber or pipefitter. Unlike a standard coupling, a union allows a section of pipe to be disconnected without cutting. The three-piece design includes two end pieces and a center nut. Once both end pieces are soldered to the pipe, the union can be assembled and disassembled by hand with a wrench. This makes it the right choice for water heaters, pumps, boilers, valves, and any equipment that may need future service or replacement.
At 1 inch, this union fits one of the most common pipe sizes used in residential and light commercial plumbing. It works in potable water supply lines, hydronic heating systems, chilled water systems, and general plumbing distribution. Wrot copper is compatible with lead-free solder and meets requirements for drinking water applications under most plumbing codes. Plumbers, mechanical contractors, and service technicians keep fittings like the CUN05 on hand for both new installations and repair work. Matco-Norca is a well-established name in wholesale plumbing supply, known for consistent dimensional tolerances and material quality across their copper fitting line.
The Matco-Norca CUN05 is a 1 inch wrot copper C x C union built for reliable, serviceable connections in plumbing and hydronic systems. Its sweat-fit design and wrought copper material make it a dependable choice for trade professionals handling potable water, heating, and cooling piping.
Thanks for subscribing!
This email has been registered!