Tube Compression Fitting Plug, All Sizes

If you have a compression fitting that you need to block off either temporarily or permanently, these teflon PTFE plugs are just what you need. To be

Ideal Spectroscopy Swagelok Tubing Compression Fittings, Caps and Plugs

PlumbShop Plastic Tubing Compression Adapters, 1/4-in OD, 2-pk

Plumber said plug with 3/8 caps but caps too big : r/askaplumber

Tube Compression Fittings

Parker 639C-4 Fitting, Tube, Brass, Compression Plug, 1/4: : Industrial & Scientific

Stainless Steel Compression Plugs - 3/4 Tube OD

Brass Compression Fittings, Plumbing quality, Air, Water, Gas, Metric Sizes.

Hastelloy C276 Compression Tube Fittings

PlumbShop Brass Compression Fitting, 1/4-in OD x 1/4-in MIP, 1-pk