FatSac Gray 750 lbs. FatSac – High Flow

The FatSac Gray 750 lbs. FatSac – High Flow is a Pro-X Series marine ballast sac built to add up to 750 lb of water ballast in rear lockers, center-floor locations, or open-bow areas. Measuring 50 x 20 x 20 inches, the gray sac holds approximately 90 U.S. gallons and uses heavy-duty layered Valmex PVC fabric. Its High-Flow layout adds a large bottom port for faster filling and draining when connected to compatible ballast-pump equipment.

Four valve ports provide flexible plumbing options, while the oversized bottom port supports accelerated water movement during filling or emptying. The package includes a High-Flow quick-connect fitting and matching High-Flow plug. UV-stabilized Valmex material, welded seams, and pressure-taped reinforcement create a durable marine bladder for ballast setups. Place the sac only in a location that can safely accommodate its 750 lb filled weight, then distribute ballast carefully to maintain appropriate boat handling and visibility.

For Flexible Wake Boat Ballast Placement

The FatSac Gray 750 High Flow is designed for wakeboarding, wakesurfing, and other boat-ballast applications where 750 lb of movable water weight can be placed in a rear locker, on the floor, or in an open-bow location. Measure the intended compartment before ordering and confirm that the boat, ballast system, pump, and operating conditions can safely support the added water weight. Fill and drain the sac with compatible fittings, keep ports sealed, and balance ballast placement for the desired wake shape.

Why Choose FatSac Gray 750 lbs. FatSac – High Flow

This ballast sac combines a substantial 750 lb capacity with a compact 50 x 20 x 20-inch footprint that fits a variety of wake boat locations. Its High-Flow bottom port distinguishes it from standard-port ballast bags by supporting faster water movement with compatible pumps. Four ports, included High-Flow fittings, UV-stabilized Valmex PVC, and welded-and-taped seams create a practical ballast bladder for boat owners building a more customized wake or surf-wave setup.

Warranty and Product Care

The FatSac Gray 750 lbs. FatSac – High Flow includes a 1-year limited manufacturer warranty, subject to applicable terms, conditions, and exclusions. Inspect the sac, seams, valves, fittings, plugs, and quick-connect parts before every fill. Keep ports clean and tightly sealed, avoid dragging the filled sac over sharp surfaces, drain it fully after use, and allow it to dry before long-term storage. Do not use a sac with damaged fabric, leaking seams, or compromised fittings.