DEWALT 7 in. MEGA Flat Box Cluster Box Unit 42 Edge Type Rectified For 42 Edge Type Rectified For Use in Bathrooms Yes For Use in Entryways Yes For Use in Garages No For Use in Kitchens Yes For Use in Laundry Rooms Yes For Use in Showers Yes For Use on Countertops Yes For Use on Floors Yes For Use on Walls Yes For Use with Backsplashes Yes For Use with Fireplace Exteriors Yes For Use with Kitchen Backsplashes Yes For Use with Patios Yes For Use with Pools Yes For Use with Underfloor Heating No Frost Resistant Yes Installation Type Thinset mortar Ledgestone Yes Material Porcelain Package Quantity 10 Sample Available Yes Sealant Required No Shade Variation V3 (moderate variation) Sold As Carton Style Modern Surface Type Smooth Tile Format Large format Tile Shape Rectangular Use Location Indoor or outdoor Warranty Limited lifetime Water Absorption Impervious Water Protection Waterproof Water Resistant Yes Waterproof Yes CA Residents: Prop 65 Warning(s) No PEI Rating 5 heavy plus traffic UNSPSC 30161700 Frequently Asked Questions (FAQ): Designed with an efficient L shape to occupy tricky corners It features a flexible brass blade holder and a stainless steel blade to ensure precision in applying joint compound for professional Precision Application: Flexible brass blade holder and stainless steel blade for efficient and consistent joint compound application