Dura Plastics 1-in Schedule 40 PVC Coupling in the PVC Pipe & Fittings department at Lowes.com
1/2" ERA Sch 40 PVC Straight Coupling - Socket x Socket
Cantex 1 in. PVC Coupling R6141625 - The Home Depot
1" ERA Sch 80 PVC Straight Coupling - Socket x Socket
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
Homewerks Worldwide 1-1/2-in Schedule 40 PVC Compression Coupling in the PVC Pipe & Fittings department at Lowes.com
1 in x 1 in Fitting Pipe Size, Schedule 40, Nested Coupling - 60UC57|477010 - Grainger