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Schluter Systems Ditra Heat DH5MA Uncoupling and Waterproofing Polypropylene Membrane, 10 Sheets of 8.4 Sq Ft Each (84 Sq Ft in Total), 1/4 Inch Thick Flooring Underlayment for Radiant Floor Heating - - Amazon.com
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Schluter Systems Radiant Ditra-Heat Uncoupling Membrane 134.5-sq ft in the Underfloor Heating department at Lowes.com
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