SUMO Skin 1000D
SUMO sacs are made with Straight Line's own flexible and puncture-resistant fabric known as SUMO Skin. 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. Straight Line's tough SUMO Skin is overlapped and hot air welded. You can see the smooth, clean seams on the outside of every bag, and 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 a 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. SL's 1" NPT ports allow built-in ballast systems to fill, drain, and vent quickly for hassle-free operation.