Charlotte Pipe 1/2 in. PVC Schedule 40 S x S Coupling PVC021000600HD - The Home Depot
Amazon.com: FangKingNo 10pcs 1" White PVC Pipe Coupling Adapter Pipe Fittings Slip (Socket x Socket) Schedule 40 Easy to Install,and High Tensile for Home or Industrial Use (1 Pack of 10pcs) (1
2 in x 2 in Fitting Pipe Size, Schedule 80, Coupling - 6NG57|829-020 - Grainger
Charlotte Pipe 2 in. PVC Schedule 40 S x S Coupling PVC021001600HD - The Home Depot
Campbell Approved Supplier 6141626 1-1/4 Inch Socket PVC Conduit Coupling Center Stop, Schedule 40/80