Ideal for replacing or adding a new ball valve into an existing line to shut-off water flow for servicing and making repairs. Compatible with copper and CPVC pipe only. Slip feature allows for 2 in of rigid copper or CPVC pipe to be cut out of an existing line and connected back together by using the disconnect tool to slide the fitting back to the other end of pipe. Innovative push-to-connect design makes for quick and easy installation. Good item to keep on hand for freezes or other emergency repairs. Ideal for working in tight spaces. Faster install time and ease of use reduces installation errors.