Plastic Caps and Plugs: Types, Materials, Applications, and Benefits
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 :
1" PVC Threaded Cap - Sierra Irrigation
Tapered Plugs and Caps | StockCap, A Plastic Cap and Plug Manufacturer
PVC Caps and Plugs — Sprinkler Supply Store
PVC Water Pipes End Seal Caps 101mm-202mm Round Silicone Rubber Hole Plugs White | eBay
Plastic Tapered Cap Plugs | Thread Protecting Cap Plug | Harman Corporation
1pcs 1/2inch~2 Inch Male Thread Plug Pvc Pipe Standard Screw Plug Pipe Fittings Tube End Caps Plumbing Accessories Connector - Pipe Fittings - AliExpress