1/2" Clear Schedule 40 PVC Cap | U.S. Plastic Corp.
1-1/2" Schedule 80 PVC Cap 848-015
Amazon.com: 20Pack 1/2 Inch Female PVC Pipe End Cap 1/2 Inch Female Threaded Plug Adapter, SCH 40 PVC Pipe threaded Cap Fitting 1/2" PVC Pipe Female Plug Socket for Plumbing Water Line,
1-1/2 Inch PVC Cap - Slip
PVC Pipeworks 1/2-in Schedule 40 PVC Cap in White (10-Pack) in the PVC Pipe & Fittings department at Lowes.com
PVC Threaded 1" Male BSP Pipe Fitting - End Cap/Stop End/Bung/Plug 1/2" 3/4" 1" | eBay