Harco 75-13043 Male Adapter Compression X Mnpt

Product Description

The HARCO 75-13043 is a plastic male adapter fitting designed to connect a compression inlet to a male NPT threaded outlet. Built for plumbing and water distribution applications, this adapter transitions a 1-inch compression connection to a 3/4-inch male NPT thread. It is a common fitting used by licensed plumbers and water service technicians when joining copper or plastic supply lines to threaded pipe assemblies. The plastic construction makes it suitable for potable water systems where corrosion resistance and light weight are priorities.

This fitting is used in residential and light commercial plumbing systems, including water supply lines, irrigation connections, and service entry points. The compression-to-MNPT configuration allows for tool-free compression side assembly while providing a secure threaded connection on the male NPT end. It is well suited for above-ground and accessible in-wall or in-slab applications where plastic fittings are code-approved.

Key Features

• 1-inch compression inlet transitions to 3/4-inch male NPT outlet
• Plastic construction provides corrosion resistance for water service use
• Compression end allows secure connection without soldering or adhesive
• Male NPT thread mates with standard female-threaded pipe fittings and valves
• Lightweight design suitable for potable water and irrigation plumbing

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial plumbing systems requiring a compression-to-male NPT adapter in plastic construction.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve line pressure before disassembly or fitting installation. Apply thread sealant tape to the male NPT threads before making the threaded connection. Do not over-tighten the compression nut, as plastic fittings can crack under excessive force.

Technical Specifications

• Inlet Size: 1 inch (compression)
• Outlet Size: 3/4 inch (male NPT)
• Connection Type: Compression x MNPT
• Material: Plastic
• Fitting Type: Male Adapter

Standard Information

• Brand: HARCO
• Manufacturer Part Number: 75-13043