Prescott Plastics 1" Inch (25.4 mm) Round Plastic Hole Plugs, Inserts, Black End Caps for Metal Tubing, Hardware Plugs, Fences, Glide Protection from Chair Legs and Furniture - Pack of 10 - - Amazon.com
Tapered Caps and Plugs | Tapered Cap | Tapered Plug | Tapered Cap Plug | Tapered Caps | Essentra Components US
Tapered Caps & Plugs with Wide Flanges | W Series | Caplugs
Caplugs 99394883 Plastic Tapered Cap and Plug with Wide Thick Flange WW-17, PE-LD, Cap OD 1.377" Plug ID 1.603", Yellow (Pack of 40): Amazon.com: Industrial & Scientific
Tapered Caps and Plugs | T Series | Caplugs
Universal Red Cap Plugs for Trach Tubes | Medline Industries, Inc.