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I have a few manual pump suction clamps but they don't compare to this one.
Pos.
Powered by commonly available AA batteries.
Easy to use.
One button control.
Suction gauge.
When the pressure falls vacuum automatically compensates.
Vacuum is automatic one powered on.
Nice hard case.
Great holding power.
Metal construction.
Negs
No repair/ maintenance parts as with others I have.
I am beyond impressed with the durability and efficiency of the Erguo S1. A great investment for anyone with a GRABO.
Magic Mike Construction –
Used these for one job, then my entire team wanted one, so we had to buy more.