For use with the Thirsty Mate kayak bilge pump. Tough plastic clips will not rust, corrode or loose flexibility. Made to hold a pump 1.74 inches in diameter. Bolts onto (or under) the deck with two fasteners, not included. Stainless Steel nuts and machine screw, 1/2 inch long x 1/8 inch in diameter are recommended. The Clipper Clip, pn. CLP-1-3/4, holding range is 1-5/8 to 1-7/8 inches. Plan your installation and clip location carefully. Same clips as found in Harmony Kit 8025222. Secure with 4 Well Nut w/ 1 in Machine Screw. Made in USA.