DeCup-HEAT (161 sq. ft.) 39.3 in. W x 49.21 ft. L 5.5 mm T Waterproof/Crack Isolation Tile Underlay for Patching/Repair
$369.98
Pay $319.98 after $50 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- Waterproof and crack isolation tile underlay for patching/repair
- Designed to grip electric heating cable, keep floor warm
- Protects your tiles from damage caused by moisture
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