Enclosed Pillow Bags are totally enclosed and have over-pressure valves to vent expanding air as they ascend. The advantage of Pillow Bags over the Open Bottom Bags is that they can attain their maximum lift in much less water. For this reason, they are excellent for raising sunken boats, and for towing jobs. Like the boulder bags and salvage tubes, all pillow bags come with brass quick disconnect fittings attached to a short filler hose (1/4” MPT).
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