🔧 Spectre Performance 4254 Vacuum Cap Assortment: Optimal Solution for All Your Automotive Vacuum Cap Needs Review

The air conditioning was torn apart on a 1990 4Runner I bought, I was able to use it to unplug the vacuum vents which helped the system. They fit well, are snug and look professional.

I made a door brake and needed different sizes to keep the brake fluid from leaking all over the place when I was replacing some brake lines. These simple yet effective covers are just what you need. Keep them handy for housework/garage chores.

I do a lot of custom car parts and it's so hard to find a good selection of colored vinyl vacuum caps. They cover all sizes and fit like a glove. Because they are made abroad, they tend to be metric, which makes them much more practical as they fit many other sizes better. great product, great price

The plastic is a bit lighter than I expected. More problematic: when it gets hot, it softens/loses elasticity. Considering the typical use of vacuum caps, this is NOT very good. For me, what was initially a tight fit quickly became a loose one, and one even fell off. I think they will be fine for non-heat applications, but for most vacuum cap applications (e.g. engine bay etc.) I would say they are not suitable.