Slip Coupling for Schedule 40 PVC Pipe (Slip x Slip)
Charlotte Pipe 1/2 in. PVC Schedule 40 S x S Coupling PVC021000600HD - The Home Depot
Charlotte Pipe 2-in x 2-in PVC DWV Repair Coupling for Non-Potable Water - Hub Connection - NSF Safety Listed in the PVC DWV Pipe & Fittings department at Lowes.com
SharkBite 1/2 Inch PVC Slip Coupling, Push to Connect Brass Plumbing Fitting, | eBay