Macomb Group Approved 79325 Propress Adapter 1x3/4 Press Fnpt

Product Description

The MACOMB GROUP APPROVED 79325 is a zero-lead bronze ProPress adapter designed to transition between a 1-inch press connection and a 3/4-inch female NPT threaded fitting. Built to Model 2912ZL specifications, this adapter is rated for pressures up to 200 psi and a temperature range of 0 to 250 degrees F. It measures 1.85 inches in length and meets NSF International, CSA, UPC, ANSI, and IAPMO standards. Licensed plumbers install this fitting in potable water and hydronic piping systems where a tool-based press connection meets a threaded transition point, eliminating open flame and reducing installation time.

This adapter is suited for residential and light commercial plumbing applications where a press-style copper or bronze fitting system terminates at a threaded port. Typical scenarios include connecting press-run copper pipe to threaded valves, manifolds, water heaters, or equipment stubs. The zero-lead bronze construction makes it appropriate for potable water service. Its compact 1.85-inch length fits in tight mechanical spaces where a standard sweat fitting would require more clearance or create heat-damage risk.

Key Features

• Zero-lead bronze construction meets potable water material requirements
• Press x FNPT configuration transitions 1-inch press to 3/4-inch female threaded connection
• 200 psi maximum pressure rating suitable for standard domestic water systems
• Temperature rating of 0 to 250 degrees F covers chilled and hot water service
• Certified to NSF International, CSA, UPC, ANSI, and IAPMO standards
• Flameless press installation reduces open-flame risk in finished or fire-sensitive spaces

Compatibility

Designed as an OEM-style press fitting for use in 1-inch ProPress-style copper press systems transitioning to 3/4-inch FNPT threaded connections in potable water and hydronic piping applications.

Installation Notes

Installation requires a compatible press tool and correct jaw set sized for the 1-inch press end. Shut off and depressurize the water system fully before cutting into the line. Verify the threaded female port is clean and use an approved thread sealant or PTFE tape on the male threaded stub per IPC and local plumbing code. Do not use this fitting in gas service or beyond its rated pressure and temperature limits.