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Made from 2-inch diameter schedule-40 PVC pipe. About 5.5 feet long. Total of around 14 feet of pipe. Some heavy fittings ("T" is about 1 lb). The total weight is 14.5 lbs.
The catamaran slides through the water very easily. The wind and waves push it quickly through the water.
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Floats fine with 2.5 lbs on top. With 5 lbs the pontoons are almost underwater.