CHARLOTTE PIPE 1/2 SCH 40 Cap Socket Contractor Pack Pressure (10 Unit Bag): Pipe Wrenches: Amazon.com: Industrial & Scientific
3/4 Inch PVC Pipe End Cap – Sch 40 MNPT 3/4 PVC cap – PVC End Cap – 3/4 Inch Male Threaded Plug - PVC Pipe Cap - PVC Plug Pipe Fitting - PVC Pipe Fittings for Plumbing Water Line
3" Schedule 80 PVC End Cap (Socket Connection)
Charlotte Pipe 1/2-in x 1/2-in Schedule 40 White Cap PVC Cap (10-Pack) at Lowes.com
Butt Weld Pipe Fittings - 6" Cap SCH 10 316/316L SS
LASCO 1/2-in Cap PVC Cap at Lowes.com
2" Cap, Sch. 40 Black Pipe Fitting, Class 150 - Hi-Line Inc.