Each of the 4.5" vacuum mounts have a rated pulling strength of 120 lbs. Our 4-link system multiplies the holding power to 480lbs!

Just remove the protective cover, press the vacuum mount onto a clean surface, pump until the white indicator band disappears. It's that easy!

There’s no set time limit. It depends on the surface you attach to, the condition of the vacuum mount, the load you put on it, and other factors. As for surfaces to attach to, vacuum mounts in general were designed to carry big sheets of glass and other solid surface materials, so smoother, flatter surfaces are ideal. Clean surfaces and clean vacuum mounts go a long way to maximizing the hold time. In any event, if the vacuum mount begins to lose some vacuum, it will warn you so you can get it back to full power before it comes off. The vacuum pump’s plunger will extend from the pump cylinder when it starts to lose power, revealing a white indicator band. Once you see white, that’s your cue to repump your vacuum. For more long-term use, the simplest thing to do is to check the indicators before you get in your vehicle, and check it each time you stop for gas, food, or the bathroom.

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