Protective Caps & Tube Plugs

What is the difference between a masking plug and a protective cap?

Masking plugs are typically silicone, reusable, and rated for coating oven temperatures. Protective caps are broader-duty — plastic or vinyl parts protecting ends, ports and threads from damage, dust and moisture, often for shipping and storage rather than in-oven masking.

Push-in, threaded or snap-on — which fit type do I need?

Push-in caps suit plain round openings; threaded caps protect and seal threaded ports; snap-on caps give a positive click-fit for openings needing secure retention during transit.