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Straight Line Sumo 325 Ballast Bag


Sumo Skin 1000D
Sumo Sacs are made with "Sumo Skin," Straight Line's own flexible and puncture-resistant fabric.  It has a durable 1000D Polyester core that is heat-laminated to lightweight PVC skins with a bonding agent.  This sandwich construction is 150% stronger in tearing tests and 37% higher in tensile strength than the competitors', making it the most durable ballast bag available.

Sumo Seams
Every Sumo sac is double welded to ensure a watertight seal.  Straightline's tough Sumo Skin is overlapped and hot air welded.  You can see the smooth and clean seams on the outside of every bag.  A second welding operation applies an inch wide sealing tape to the inside of every seam.

Sumo Max Flow Link Valve
Straight Line's new Sumo Max Flow valve is a new 1.5" diameter high-flow version of the Sumo Link system.  The Sumo Max Flow valve provides the same hassle-free watertight connection to your Sumo pump but with massive 50% larger intake.  The Sumo Max system is 100% compatible with the classic Sumo and Big Bag ballast systems.

Link Valve
Straight Line's unique Link system provides a hassle-free connection to your Sumo Pump, keeping your boat dry on the inside.  The Link Valve is watertight and can also be used as a convenient way to purge air from your bag.

1" NPT Valves
New, easy-turning cap with a perfect watertight seal pressure tested up to 6 PSI.  A 1" NPT ports allow built-in ballast systems to fill, drain, and vent quickly for hassle-free operation.



The Sumo 325 Ballast Bag was designed to fit inside the ski locker area of most wake boats. Adding weight to the center of the boat balances the boat weight to reduce "porpoising". It also makes the wake firmer, longer, and maximizes the amount of weight that can be added to a boat resulting in a massive wall of water. Plus, being able to place a ballast bag in the center locker keeps the boat area free and clear for all your friends and family. Everyone on your boat will approve.

All Straight Line Sumo Ballast Bags are designed to pair with Straight Line Sumo Ballast Pumps. Combining the two creates one of the fastest filling ballast systems in the industry.

Sumo Sacs are easy to use, durable and convenient. They are designed to work as a plug 'n' play option with your factory ballast system or on deck with Sumo pumps.

325 lbs

65" L x 17" W x 8" H


Additional Information

SKU 2149051
Size 325 Lbs.
Brand Straight Line
Color No
Location in Boat Center
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