COVERED SACS SHOWING 4-5 of 5 / PAGE 1 2   Heavy duty 30 Gauge PVC bladders. Heavy duty tarpaulin cover for extra protection. Rectangular shape for weight maximization. Rubberized handles for repositioning bags. One LPL valve for cleaner filling/draining. Three traditional valves for compatibility with old pumps. Weighting the Boat Weighting the Boat for Wakesurfing Launch Pad 150lb Big Block 8109 10"h x 14"w x 28"l Fits perfectly on or under seats. Easily moveable with its rugged handles. FIND IT NOW 440lb Single 8108 15"h x 15"w x 50"l Perfect size for anywhere in the boat. FIND IT NOW