Purchase SeaSucker Vacuum Mount 4.5  SeaSucker Holding Ultimate Boat Shade Kit on Sportfish. | _200x.jpg) Pair of SeaSuckers (sold individually, not in pairs). | (click image to enlarge) | Not what you need? Try: Searching for your boat or product | The 4.5 inch SeaSucker® vacuum cup is rated to pull up to 120 pounds. Two slotted holes for back-plating accessories or mounting hardware and one center stainless steel insert for mounting anything with a standard ¼-20 machine screw: |