Install Spec SheetThe HOME-FLEX underground in. Pipe Coupler allows you to safely and easily connect two pieces of polyethylene gas piping. Simply cut the pipe, slide in the provided stiffener and slide into the fitting and tighten down.HOME-FLEX Underground compression fitting for IPS size MDPE Yellow Poly Gas PipeUnderground use onlyNot for use in or under buildingsApproved for direct burialEasy to understand, straight-forward installationNo special tools or equipment required to fit to compatible sized yellow poly gas pipeInstall using bas