Filters Underlay 2 Brands Duralay Base Material Felt 2 Built-In Membrane Yes 2 Sound Proofing 23dB Sound Reduction 1 24dB Sound Reduction 1 Thickness 3.6 mm 1 4.2 mm 1 Search Results for "Duralay" PopularityPrice - LowestPrice - Highest 18 36 54 72 90 Duralay Timbermate Excel Silver Flooring Underlay Duralay Timbermate Silentfloor Gold Flooring Underlay, 4.20 Mm