RigWheels A-Cups with 1/4-20" Studs, Suction Cups for RigPlate and RigAxels (4 Cups)

A-Cups are industrial grade suction cups with industry standard 1/4-20" studs that screw directly into the RigPlate or RigAxels. You will notice 3 different versions of suction cups that are offered. The A-Cups are the most general purpose and most cost effective. The B-Cups have more holding power in a straight pull and they have less flex so the overall mount is a bit more solid. The trade off is that the B-Cups are more easily removed so if the mount is going to be subject to a lot of outside forces (wind, water, etc...) than the A or C version is recommended. C-Cups are for the most serious of jobs with a vacuum pump mechanism to keep the suction cup securely affixed to a surface with a visual safety indicator.