ThermoSoft WarmFlex 20 ft. x 36 in. 240 Volt Radiant Floor Heating Mat (Covers 60 sq. ft.) Carbide Saw Blade for easy installation over most GlueCore for easy installation over most existing surfaces such as tile 0 Color Family Blues Color Finish Lake Blue Contaminants Filtered Chlorine Copper Reduction (%) 0 Features Indicator light(s) Filtration Method Carbon Block Fluoride Reduction (%) 0 House Hold Size Unspecified Includes Filter Iron Reduction (%) 0 Lead reduction (%) 0 Material Plastic Number of filters included 1 Pack Size 1 Pitcher capacity (fl Add a power module (purchased separately) to increase your heated area in increments up to 400 sq addition or basement