Drains Unlimited Linear Floor Drains - Brass Matte - DUFB Series The Brass Matte Linear Floor Drains are designed to create a stylish finish for any single-pane slope shower installation. DUFB Drains are built with heavy-duty 304 stainless steel and a textured flange, ensuring easy installation and longevity in your shower. Features DUFB Drain Grates are now available in 8 different styles and 5 different finishes to match any tile or stone installation in any shower Made from heavy-duty 304 stainless steel Textured flange ensures tight waterproof membrane seal Removable grate for easy cleaning and maintenance Single slope to drain UPC, CSA, and ASME certified Rust-resistant passivated finish Hygienic barrier-free design Full length measured between finish face and sheathing Suitable Substrates Concrete Exterior glue Plywood (Interior only) Cement backer board Cement mortar bed