20mil Waterproof Membrane 330Sq ft F Bathroom Shower Tile Flooring Underlayment

20mil Thickness. Thickness: 20mil. Waterproof & Wear Resistant. Size: 3.8ft x 87ft. Coverage: 330.6 Sq.ft (3.8ft x 87ft). Material: Polyethylene + Polyester non-woven fabric.

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