The Straight Line Sumo Max Open Bow Ballast Bag gives you 750 lbs. of additional weight hidden underneath the seats in the bow of your boat. Straight Line's biggest Sumo Max Open Bow Bag keeps your boat level loaded for better performance and fits walk through bow compartments. This bag is designed to fit most 22 to 25 foot boats with under seat storage in the bow. The integrated bow sac fits underneath the seats ensuring all of the bow seating will be available. All Straight Line ballast bags come standard with 1” NPT ports (1 LINK fill, 2 fill/vent, and 2 drain) and compatible with the Sumo Max Flow Pump.