Elkhart Supply 51251 3/4" PB to PEX Transition Coupling with Crimp Rings

The Elkhart Supply 51251 is a 3/4-inch PB to PEX transition coupling designed to connect older polybutylene (PB) piping systems to modern PEX tubing. This Flair-It brand coupling provides a reliable solution for upgrading or repairing plumbing systems without replacing entire pipe runs.

Key Features:

• Connects 3/4-inch O.D. polybutylene pipe to 3/4-inch O.D. PEX tubing
• Includes crimp rings for secure, leak-free connections on both ends
• Brass construction for durability and corrosion resistance
• Compatible with PEX A, PEX B, and standard crimp tools
• Ideal for residential, commercial, and RV plumbing applications
• NSF and CSA certified for water supply systems

This transition fitting is essential for homeowners and plumbers working with older polybutylene systems, allowing seamless integration with newer PEX technology. The included crimp rings ensure proper installation using standard PEX crimping tools, creating secure connections that resist leaks and maintain water pressure.