LF Brass Compression x Male Pipe Thread Adapter Copper Tube Size – CTS & HDPE to FPT Transitions | 300 PSI | AWWA & NSF Certified

Copper Tube Size LF Brass | Compression by MPT Adapter – Secure Transitions for CTS & HDPE Connections

Ensure dependable, leak-free transitions between copper or HDPE piping and female-threaded plumbing fittings with the Copper Tube Size LF Brass Compression by MPT Adapter. Built for durability and long-term performance, this lead-free brass adapter provides a secure Compression x Male Pipe Thread (MPT) connection, making it a go-to choice for municipal waterworks, residential service lines, and irrigation systems.

Designed to work with Copper Tube Size (CTS) and High-Density Polyethylene (HDPE) pipe, these adapters simplify installations and ensure a tight seal in a variety of utility applications. For use with flexible plastic piping, insert stiffeners are required to reinforce the connection.

Key Features: Durable, Code-Compliant Connections

• Versatile Use:
  Connects CTS copper or HDPE piping to threaded plumbing systems with female NPT threads.

• Precision Fit:
  Ideal for 3/4" and 1" CTS service lines and commonly used in municipal and residential installations.

• Lead-Free Brass Construction:
  Made with LF Brass, ensuring compliance with low-lead requirements for potable water systems.

• 300 PSI Rated:
  Withstands high-pressure service demands—perfect for both underground and above-ground use.

• AWWA & NSF Certified:
  Meets or exceeds AWWA C800 and NSF/ANSI 61 & 372 standards for safety and performance.

• Insert Stiffeners Required:
  When used with HDPE pipe, always use insert stiffeners (sold separately) for optimal performance and support.

Connect with Confidence—Built to Industry Standards

Whether you’re connecting municipal service lines or installing plumbing in new construction, the Copper Tube Size LF Brass Compression x MPT Adapter delivers unmatched reliability and performance. With its robust build and code-compliant certification, it’s the perfect solution for transitioning from copper or HDPE pipe to threaded plumbing connections.

CTS Brass Compression Fittings Size Guide

CTS (Copper Tube Size) brass compression fittings are designed for use with plastic (HDPE) or copper tubing that follows the Copper Tube Size standard. This system refers to the nominal size of the tubing, but the actual outside diameter (OD) is larger than the nominal value. These fittings are commonly used in residential plumbing, potable water systems, and radiant heating applications.

All compressions ends of CTS fittings connect to tubing based on its outside diameter, which is a measurement also shared with copper pipes. Be sure to measure the OD of your pipe or tubing to ensure compatibility. Always measure the outside diameter of your pipe to select the proper size.

Tip: CTS compression fittings are not interchangeable with IPS fittings or pipe. If you're using HDPE or CPVC pipe, verify that it follows CTS sizing and confirm the OD before purchasing.