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FatSac Gray Integrated Bow Sac- High Flow
Crafted from heavy-duty Valmex polyvinyl fabric, the FatSac integrated bow ballast sac adds 650 pounds of water weight under open-bow seats to drastically enhance your boat wake profile.
- Welded seams withstand intense water pressure
- Four large ports enable high flow
- Valmex fabric prevents marine wear damage
- Adds 650 pounds of wake displacement
- Under seat design optimizes boat space
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Description
With 650 lbs of added water ballast capacity, the FatSac Gray Integrated Bow Sac- High Flow is designed for boat owners who need to increase front-end weight in an open-bow inboard setup. Its 78-gallon capacity and four 1-inch high-flow quick-connect ports support an integrated ballast layout under the bow seating area, helping users configure water weight rather than relying on loose onboard gear. The 50 x 44 x 12-inch body shape is intended for most open-bow V-drive and direct-drive inboard boats.
This High-Flow Series sac uses heavy-duty marine-grade Valmex polyvinyl chloride fabric, with precision welded and pressure taped seams. Its UV-resistant gray finish is specified for marine use, and the extra-large port inlets provide four quick-connect connection points for fill and drain plumbing. Each leg measures 12 inches wide, allowing the sac to conform to the listed integrated bow area. FatSac manufactures this commercial-grade marine ballast bladder in the USA and includes a 1 Year Limited Manufacturer Warranty.
High-Flow Bow Ballast Capacity and Port Layout
- Marine boat ballast sac bladder for integrated open-bow use
- 650 lbs or 295 kg total added water weight capacity
- Approximately 78 US gallons or 295 liters of liquid volume
- 4x 1-inch High-Flow quick-connect valve ports
- Heavy-duty marine-grade Valmex polyvinyl chloride fabric
- Precision welded and pressure taped seam construction
- 50 x 44 x 12-inch body dimensions with 12-inch-wide legs
- UV-resistant gray finish and USA-made marine fabrication
Adding Bow Weight Through an Integrated Layout
The Integrated Bow Sac is intended for owners who want a dedicated ballast bladder beneath open-bow seating rather than a generic rectangular bag placed elsewhere in the boat. Its stated 650 lb capacity distributes a substantial water load in the front seating area, while four high-flow ports provide multiple plumbing connection points. Because ballast placement affects boat behavior, users should follow the boat manufacturer’s capacity, loading, and operational guidance, keep passenger and gear weight in mind, and confirm that the bag does not interfere with seating or safety equipment.
- Material focus: Valmex PVC fabric, welded seams, pressure tape, and UV-resistant finish make up the listed marine construction.
- Plumbing focus: Four 1-inch quick-connect ports support a high-flow fill and drain configuration.
- Fit focus: The 50 x 44 x 12-inch body is listed for most open-bow V-drive and direct-drive inboard boats.
Bow Sac Dimensions and Boat Compatibility
Confirm available storage space before installation: the FatSac Gray Integrated Bow Sac- High Flow measures 50 inches long, 44 inches wide, and 12 inches high, with legs that are 12 inches wide. It is specified for most open-bow V-drive and direct-drive inboard boats. Do not exceed the vessel manufacturer’s rated load capacity, and distribute ballast, passengers, and equipment according to the owner’s manual. Inspect quick-connect valves and hose routing before filling to avoid leaks or pinching.
Ballast Bladder Inspection and Storage
- 1 Year Limited Manufacturer Warranty
Drain the FatSac completely after use, rinse if required, leave all ports open until the interior is dry, inspect welded seams and quick-connect valves, and store the bladder away from sharp objects and prolonged sun exposure. Confirm product details, compatibility, and warranty terms before ordering.
FatSac Gray Integrated Bow Sac- High Flow
| Brand | FatSac (Barefoot International) |
|---|---|
| Product Category | Marine Boat Ballast Sac Bladder |
| Application Type | Integrated Under-Seat Open-Bow Ballast Optimization |
| Flow Rate Series | High-Flow Series with Extra-Large Port Inlets |
| Material Formulation | Heavy-Duty Marine Grade Valmex Polyvinyl Chloride Fabric |
| Seam Construction | Precision Welded and Pressure Taped Seams |
| Ballast Capacity Weight | 650 lbs (295 kg) Total Added Water Weight |
| Liquid Volume | Approximately 78 US Gallons (295 Liters) |
| Port Configuration | 4x High-Flow 1-Inch Quick-Connect Valve Ports |
| Physical Dimensions | Body: 50 x 44 x 12 Inches (Leg Dimensions: 12 Inches Width) |
| Color Finish | UV-Resistant Gray Finish |
| Hull Compatibility | Fits Most Open-Bow V-Drive and Direct-Drive Inboard Boats |
| Manufacturing Standard | Made in the USA Commercial Grade Marine Fabrication |
| Standard Warranty | 1 Year Limited Manufacturer Warranty |
What's in the Box
- 1x FatSac Gray Integrated Bow Ballast Sac
- 3x W731 Standard Valve Caps
- 1x W749 High-Flow Valve Adapter
- 1x W730 Premium Drainage Valve Plug
- 1x User Manual
FatSac Bow Ballast FAQ
What space matches the FatSac Bow Sac?
The internal bow storage compartments of V-Drive wake sport boats match the integrated triangular framework layout of this gray FatSac. This ballast cell fits directly under front seat cushions to add targeted nose weight right where the hull needs it most. It provides an efficient platform that lowers your bow rise while cleaning up rear wake wave faces.
How much weight does this ballast bag add?
The FatSac integrated bow ballast bag adds approximately 650 lbs (295 kg) of static weight when filled completely with water. Boat operators must check their vessel's maximum payload boundaries before running high-capacity ballast pumps to fill the twin thirty-inch arm sleeves safely. This added weight helps sculpt longer wake transitions for advanced wakeboarding runs.
Which interface properties anchor this high-flow ballast cylinder?
Serving as a secure internal weight conversion source inside front seating frames, this accessory applies these dimensional baselines:
| System Attribute | Official Blueprint Specifications Matrix |
|---|---|
| Product Type | Integrated bow ballast sac designed with two extended side arms to conform natively inside V-drive bow under-seat cavities |
| Material Build | Heavy-duty UV stabilized premium PVC skin engineered to endure severe water pressure stresses without puncture leak tracking problems |
| Valve Fittings | High Flow valving ports configured to support rapid filling and draining loops via quick-connect external water pump assemblies |
| Hardware Size | Compact un-filled dimensions measuring 20 x 20 x 10 inches on the main block body mated with twin 30-inch arm columns |
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