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Top 5 Positive Customer Reviews for qstexpress
the pump is exactly as describe but unfortunately it does not fit through the neck of regular diesel or gasoline refueling jugs so I am unable to use for my intended purpose it is approximately 1 mm larger than the diameter opening in the fuel jug
So far product is working fine. Speed very fast and variable. However the 2 pcs collet, one was chipped. Both do not have a spring. Can accept as it is not critical. No instruction manual - this is negative