Watts Radiant's SubRay Radiant Floor System is a time tested, high quality radiant floor system guarenteed to suit any homeowner's radiant floor needs. The entire selection of wood subfloor is constructed from group one baltic birch to ensure comfort and quality heat for decades. A wide variety of floor sweeps and planks are provided to adapt to any room shape or size.
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95% DOP and HEPA/ULPA Filters 
