NXT Level Flow underlayment pours up to 2" (51 mm). This fire-rated, high-flowing, pump-friendly, cement-based formula is self-leveling for interior substrates. It enables floor coverings to be installed in just 24 hours. The product comes with a five-year warranty. One 50-pound bag mixed with approximately 3.7 to 4.5 quarts of water, delivering high flow and reliability.
