The Plumber's Choice 1-1/2 in. MIP x 1-1/2 in. Lead Free Stainless Steel CPVC Adapter Pipe Fitting (5-Pack) 112-TTDQN-5 - The Home Depot
Astral CPVC Pipe Fitting, Hot & Cold Water
WMAXPFIT PEX Pipe Fitting 1/2 inch Set, Brass Push Fit Fitting 1/2 inch Set with 90 degree elbow, tee & coupling, push to connect for quick connection to PEX Tube Pack of 12 - Amazon.com
The Plumber's Choice 1 in. MIP x 1 in. Lead Free Stainless Steel CPVC Adapter Pipe Fitting (5-Pack) 100-TTDQN-5 - The Home Depot