The FatSac Gray Jumbo V-Drive – High Flow is a maximum-capacity Pro-X ballast sac designed for rear engine locker compartments in V-drive boats 23 feet and longer. Measuring 50 x 24 x 24 inches, this single sac holds approximately 132 U.S. gallons and adds up to 1,100 lb of water ballast when filled. Its large capacity gives wake and surf boat owners a substantial rear-weight option for shaping bigger wakes and more pronounced surf waves.

Layered UV-stabilized PVC ballast material, high-frequency welded seams, and seam-taped construction create a durable marine bladder for repeated fill-and-drain cycles. Four inset ports provide flexible plumbing connections, while the larger bottom port supports high-volume drainage. The included fitting kit contains two W731 fittings, one W749 fitting, and one W730 fitting. This sac is designed as a direct factory-ballast replacement for compatible Supra, Moomba, and Malibu boat installations, subject to compartment dimensions and plumbing configuration.

Key Features of FatSac Gray Jumbo V-Drive – High Flow

- 1,100 lb single-sac capacity: The Jumbo V-Drive holds approximately 132 U.S. gallons of water for substantial rear ballast placement.
- 50 x 24 x 24-inch dimensions: The large rectangular shape is designed for rear engine locker compartments in V-drive boats 23 feet and longer.
- High-Flow port configuration: Four inset ports and one larger bottom drain port support flexible fill, vent, and drain connections.
- Complete fitting kit included: The package includes two W731 fittings, one W749 fitting, and one W730 fitting for the stated High-Flow port system.
- UV-stabilized PVC material: Layered polyvinyl ballast material provides a durable outer structure for marine ballast applications.
- High-frequency welded seams: Welded and seam-taped construction supports the sac’s stated pressure-resistant marine design.
- V-drive rear-locker placement: The sac is built for larger rear engine-compartment ballast locations rather than small universal storage spaces.
- OEM replacement application: The Jumbo V-Drive is designed as a replacement ballast option for compatible Supra, Moomba, and Malibu boats.

For Large V-Drive Rear Ballast Setups

The Gray Jumbo V-Drive High Flow is designed for wake and surf boat owners using larger V-drive rear compartments to add up to 1,100 lb of water ballast on one side of the boat. It fits rear engine lockers in boats 23 feet and longer when compartment dimensions, plumbing, and boat capacity are suitable. Measure the installation space before ordering, connect compatible fittings securely, monitor filling, and distribute ballast according to the intended wake or surf-wave setup.

Why Choose FatSac Gray Jumbo V-Drive – High Flow

This sac provides a high-capacity rear-ballast solution for owners who need more weight than a standard 400 lb or 750 lb bag can provide. Its 1,100 lb capacity, 132-gallon volume, large High-Flow drain port, four-port layout, and included W731, W749, and W730 fittings create a clearly defined installation package. The 50 x 24 x 24-inch footprint, UV-stabilized PVC construction, and OEM-replacement compatibility make it suited to larger V-drive ballast compartments.

Warranty and Product Care

The FatSac Gray Jumbo V-Drive – High Flow includes a 1-year limited manufacturer warranty, subject to applicable terms, conditions, and exclusions. Inspect the sac, welded seams, ports, fittings, plugs, and connection points before every fill. Keep the sac away from sharp edges, excessive heat, and moving engine components, drain it fully after use, and allow it to dry before storage. Do not use a bladder with leaking seams, damaged material, loose fittings, or compromised ports.