Innovative push-to-connect design makes for quick and easy installation. Compatible with Copper, CPVC, PEX, PE-RT & HDPE pipes. Transition fittings are also available for PVC and Polybutylene. No special tools, crimping, glue or soldering required. Approved for underground and behind-the-wall applications. Ideal for working in tight spaces. Faster install time and ease of use reduces installation errors. Just push to create a watertight seal, and move on to the next job.