Title: The main difference is the Pressure Spring Chamber on the side of the bottom of the pump. The spring has to be hella strong to keep all that pressure against the ball. Better pump for sure.
File name: MX7R7032.jpg
Owner: Gallery Administrator
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The main difference is the Pressure Spring Chamber on the side of the bottom of the pump. The spring has to be hella strong to keep all that pressure against the ball. Better pump for sure.
