Can a plastic pipe be connected to a metal pipe? - Quora
Amazon.com: Pack of Tee Fittings for 1/2" Schedule 40 Plastic Piping with 1/8" FTP Threads for Chicken Auto-Fill Water Cups, Horizontal Nipples, Rabbit Nipples and Auto-Fill Metal Cups… (12) : Patio, Lawn
Charlotte Pipe 2 in. x 1-1/2 in. PVC Schedule 40 MPT x S Male Reducer Adapter PVC021101600HD - The Home Depot