Midland Industries LF66-68 Compression Coupling Brass

Product Description

The MIDLAND INDUSTRIES LF66-68 is a lead-free brass compression coupling designed to connect 3/8-inch compression fittings to 1/2-inch female iron pipe (FIP) threads. Constructed from lead-free brass with a 9/16-24 x 1/2-14 thread specification, this coupling meets requirements for potable water and other plumbing applications where lead-free materials are mandated. It is rated for temperatures from -40 to 250 degrees F, making it suitable for both cold and hot water service lines. Licensed plumbers and pipefitters install this type of fitting in residential and light commercial plumbing systems.

This coupling is used where a compression-style tubing connection must transition to a female iron pipe thread. It is compatible with copper, aluminum, or plastic tubing on the compression side, providing flexibility across common plumbing installations. Typical applications include water supply lines, fixture connections, and branch line transitions where a threaded female port is required on one end and a compression connection on the other.

Key Features

• Lead-free brass construction meets lead-free compliance requirements for potable water systems
• 3/8-inch compression inlet transitions to 1/2-inch FIP outlet
• Thread specification: 9/16-24 x 1/2-14
• Rated from -40 to 250 degrees F for broad service range
• Compatible with copper, aluminum, or plastic tubing on the compression side

Compatibility

Compatible with copper, aluminum, or plastic tubing on the 3/8-inch compression connection. Designed as a compression-to-FIP female adapter for use in standard residential and light commercial plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve line pressure before making or breaking any connections. Hand-tighten the compression nut first, then use an appropriate wrench to finish; do not overtighten, as brass threads and compression sleeves can be damaged. Verify that tubing is cut cleanly and fully seated before tightening the compression nut.