Boulder Bags derive their name from gold dredgers and nugget hunters who use them for lifting boulders in the shallow rivers of California's mother-lode country. They are designed to get a maximum amount of lift from a single lift-point in a minimum depth of water.
For example, the 2000-pound Boulder Bag gets its total lift in less than 3 feet of water, whereas the 2000-pound Open Bottom Bag requires almost 8 feet of water. These bags are very durable and have been used as air jacks capable of exerting several thousand pounds of force over a large area.
|Model Number||Lift (lbs)||Shipping Weight (lbs)||Width x Height (in)||Volume at Surface (63lbs/cu ft)|
|CBBB-1000||1000||18||54 x 58||32.0|
|CBBB-2000||2000||27||54 x 86||48.0|