238pcs Rubber Screw Thread Protectors Soft Pvc End Caps Vinyl Flexible Round Hose Tube Bolt Cap Cover Plastic Nut End Cap Cover, for Protect Pipe End Cable Furniture (Inner Dia 1-15mm) :
Pipe Caps & Pipe Protection | Greentree
Round Rubber End Caps Protection Cap Threaded Cover Pipe Tubing AntiScratch PVC | eBay
Red LDPE, BSP/Gas, SR 1018 Threaded Protection Caps, Plastic Caps & Plugs - Hydraquip