30 Mil Hdpe Liner Waterproof Membrane Dam Liner
ST190 (20 mil),usage life is at least 10 years - The thinnest, most flexible liner, the ST190 polyethylene material consists of three layers of high-density and low-density polyethylene. Recommended for small projects. ST250 (25 mil),usage life is at least 15 years - Perfect for large and small ponds, the ST250 is our most popular grade of liner.
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