SBDs (Pack of 10) 1" ROUND Black Plastic Tubing Plug | 1 Inch End Cap (for
1-5/8"/10-14 Gauge Round Black Tubing Plug - A = 1.625", B = 0.59" | U.S. Plastic Corp.
Amazon.com: Prescott Plastics 1" Inch (25.4 mm) Round Plastic Hole Plugs, Inserts, Black End Caps for Metal Tubing, Hardware Plug, Fences, Glide Protection from Chair Legs and Furniture - Pack of 4 :
PVC Plug Threaded
Jones Stephens 6-in. Pipe Size Mechanical Test Plug for DWV Cast Iron and Plastic Pipe in the PVC Pipe & Fittings department at Lowes.com
10 Pack White 1" Round Tubing Plastic Hole Plug End Cap, 1 inch OD Tube Pipe Cover Plug, Heavy Duty Plastic Plug Cap Insert - Walmart.com
Plastic Pipe End Plugs 5 Inch PVC Plug Plastic Pipe Plugs - China Plastic Pipe Plugs, Pipe Fittings | Made-in-China.com