When connecting PEX Tubing to copper tubing, you can either connect directly to the copper pipe or to the copper pipe through a copper fitting. If you are using a fitting as a go-between, you will need a PEX Copper Fitting Adapter. A copper fitting and copper pipe have different inside diameters, so a PEX Copper Pipe Adapter will not work if you are connecting via a fitting and a PEX Copper Fitting Adapter will not work if you are connecting straight to the pipe.
PEX Fittings and other supplies for PEX Plumbing can be found at www.supplyhouse.com
PEX Fittings and other supplies for PEX Plumbing can be found at www.supplyhouse.com