FatSac Fillable Weight Bag

This Fillable Weight Sac can be filled with anything from water to rocks, sand, and metal slugs. It weighs 50 pounds when filled with water and is perfect for connecting to the Supa Pump using the standard W730 fitting. You can also fill it quickly by plunging it under water until it’s full, then capping it. When you’re done, simply empty it and fold it up for easy storage.