Harco 75-13233 Female Adapter Compression X Fnpt

Product Description

The HARCO 75-13233 is a female adapter fitting designed to transition between a compression connection and a female NPT threaded connection. Both ends measure 3/4 inch, making this a same-size adapter suited for joining compression tubing runs to threaded pipe fittings or fixture supply lines. This type of fitting is commonly installed by licensed plumbers working on potable water supply, irrigation, or hydronic distribution systems where a leak-free mechanical connection is required without soldering.

This adapter sees use in residential and light commercial plumbing applications where copper or plastic tubing must connect to an FNPT-threaded port on a valve, manifold, or fixture. The compression end accepts standard 3/4 inch OD tubing and creates a seal by compressing a ferrule against the tubing wall, while the FNPT end threads onto a standard male NPT fitting or valve body.

Key Features

• 3/4 inch compression inlet to 3/4 inch FNPT outlet for same-size transitions
• Compression connection eliminates the need for solder or open flame during installation
• Female NPT thread conforms to standard NPT taper for a reliable threaded seal
• Suitable for potable water, irrigation, and hydronic supply line applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 3/4 inch OD compression tubing and 3/4 inch female NPT-threaded connections in residential and commercial plumbing systems.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve line pressure before disassembling any existing fittings. Hand-tighten the compression nut onto the tubing before applying a final wrench turn to seat the ferrule — do not overtighten, as this can distort the ferrule and cause leaks. Apply thread sealant or PTFE tape to the NPT threads before making up the threaded connection.

Technical Specifications

• Inlet Connection: 3/4 inch Compression
• Outlet Connection: 3/4 inch FNPT
• Inlet Size: 3/4 inch
• Outlet Size: 3/4 inch
• Fitting Type: Female Adapter

Standard Information

• Brand: HARCO
• Manufacturer Part Number: 75-13233