Merit Brass MB12290 Copper Press Coupling 1/2 Inch

Product Description

The MERIT BRASS MB12290 is a 1/2-inch copper coupling without stop, designed for press-fit plumbing installations. It accepts push-to-connect end connections on both sides, allowing fast, tool-assisted joining of copper pipe without soldering or open flame. The fitting is lead-free copper construction, rated for a maximum working pressure of 300 psi and a maximum working temperature of 250 degrees F. Plumbers use this coupling to join straight runs of copper pipe in potable water, hydronic heating, and general plumbing distribution systems where speed and code compliance are priorities.

This coupling is suited for residential and light commercial plumbing applications where press fittings are specified or preferred over soldered joints. The absence of a center stop allows the fitting to slide fully onto pipe, which is useful in repair work where pipe cannot be cut back to create a standard insertion gap. Licensed plumbers installing this fitting work within systems requiring NSF-61/372 and IAPMO PS117 compliance for potable water contact.

Key Features

• Lead-free copper construction meets NSF-61/372 potable water requirements
• Push-to-connect press end connections on both ends for flameless installation
• Coupling without stop design supports in-line repair and tight-clearance installs
• Rated to 300 psi maximum working pressure
• Rated for temperatures from 0 degrees F to 250 degrees F
• Certified to IAPMO PS117 and NSF-61/372 standards

Compatibility

Designed as an OEM-style press fitting for 1/2-inch copper pipe systems in residential and commercial plumbing installations where push-to-connect press couplings are specified.

Installation Notes

Installation requires a compatible press tool and jaw set rated for copper press fittings of this size. Shut off and depressurize the water supply before cutting into any existing line. Follow IPC and local plumbing code requirements for press-fit copper connections, including inspection of pipe ends for burrs or deformation before insertion. Do not exceed the rated pressure and temperature limits of this fitting.