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.
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.
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.