Product Description
Trusted by elite wakesurfers, wakeboarders, and leading boat manufacturers like Nautique, Moomba/Supra, and Malibu/Axis, the FatSac W705-GRAY Center Locker Ballast Bag is engineered to help you fine-tune your boat’s performance. Whether you’re wakesurfing, hydrofoiling, or wakeboarding, proper ballast is essential—and FatSac delivers industry-leading quality you can rely on.
Handmade in the USA, this 650 lb ballast bag is constructed from FatSac’s proprietary layered vinyl material, designed specifically for ballast use. Welded seams with reinforced taping ensure exceptional strength and long-term durability, even under heavy use and harsh marine conditions. Measuring 62” x 26” x 10”, the W705 is designed to fit center lockers or sit on or under rear seats, making it a versatile solution for V-drive boats and above-deck installations.
Each bag includes all required fittings for use with the FatSac Supa Tsunami Pump (pump sold separately), and FatSac’s in-house fitting production allows for full customization options. Custom printing is also available, letting you personalize your ballast setup for a truly dialed-in look and performance.
Key Features & Specs
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Adds 650 lbs of ballast for improved wakesurf, wakeboard, and hydrofoil performance
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Designed to fit center lockers or on/under rear seats
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Dimensions: 62” x 26” x 10”
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Four port holes for flexible fill and drain configurations
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Includes fittings for Supa Tsunami Pump (pump sold separately)
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2 × W731 fittings
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1 × W749 fitting
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1 × W730 fitting
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Proprietary layered vinyl material engineered specifically for ballast use
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UV-stabilized to resist sun damage and fading
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Welded seams with reinforced taping for industry-leading durability
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Handmade in the USA
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Fits V-drive compartments or above-deck applications
