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Product DescriptionVirtually indestructible, these flexible, puncture-resistant ballast bags are made with a sandwiched, woven polyester core with internally glued and taped seams. The "sandwich" design keeps the bags thin for easy folding and storage when not in use. Features three Link valves for watertight, airtight filling and draining. Includes one traditional valve compatible with older pumps. Centered handle on top makes it easier to adjust the bag in compartments during filling/draining. Weight label around valve for easy size identification. Color-coded graphics identify ideal location on your boat for placing the bags. 50"L x 22"W x 22"H.
Straight Line's Sumo Sac Spring-Loaded Link Valve creates a clean, watertight seal that automatically opens and closes when the Sumo Pump (not included) is used for filling and draining, eliminating water shooting into the boat.