FATSAC Wally Plug w/O-Rings

The FATSAC Wally Plug with O-Rings is a purpose-engineered replacement ballast bag plug designed for operators and water sports professionals who rely on FATSAC ballast systems for precision weight distribution. Whether you're running a tactical training operation, law enforcement water rescue, or marine ballast application, this plug seals unused ballast bag ports with the same watertight integrity as OEM components. The plug's proprietary thread pattern matches FATSAC's exclusive fastening specification, ensuring compatibility across the full FATSAC ballast bag lineup.

This replacement plug features integrated O-ring seals that create a pressure-tight closure, preventing water ingress and eliminating the risk of leakage or backing out during high-vibration or dynamic operations. The dual O-ring design distributes sealing load evenly across the threaded interface, which is critical in ballast systems where repeated pressure cycling and temperature fluctuations are common. The compact 1 x 1 x 1 inch form factor allows for dense packing in equipment bags, and the 0.1 lb weight is negligible in multi-bag configurations, making it ideal for field repairs or spare kit assembly.

Tactical teams, maritime units, and ballast system operators benefit from keeping spare FATSAC Wally Plugs on hand for rapid field repairs or ballast reconfiguration. When you reconfigure your FATSAC bag array or retire a port, this plug provides a permanent, non-corrosive solution that won't degrade in saltwater or high-humidity environments. Installation is tool-free—simply hand-thread the plug into the target port until the O-rings seat properly. For maximum seal integrity, ensure the threaded port is clean and dry before installation.