Flexible Technologies Inc M-Ke Thermaflex Flexible Hvac Duct - 20 Inch Diameter R6.0 p/n 0558-2000-0001-10

THERMAFLEX M-KE HVAC DUCTS HAVE A VINYL COATED SPRING STEEL WIRE COIL CONSTRUCTION THAT IS IDEAL FOR LOW MEDIUM PRESSURE HEATING AND COOLING ENVIRONMENTS. THESE HIGHLY EFFICIENT FLEX DUCTS FEATURE A CORE THAT IS BONDED TO THE STEEL WIRE COIL TO SUPPORT THE FIBERGLASS INSULATION. DUCT INSULATION IS AVAILABLE IN THREE DIFFERENT R-VALUES FOR VARIED THICKNESS R-4.2 R-6.0 AND R-8.0. THE ACOUSTICALLY RATED POLYETHYLENE INNER LINER ON THESE HVAC DUCTS ELIMINATES NOISE AND EASILY EXPANDS. SPIRAL DUCTS ARE MOLD AND MILDEW RESISTANT. TEMPERATURE RANGE IS FROM -20F TO 200F AND -20F TO 250F INTERMITTENT. INNER CORE IS SELF-EXTINGUISHING. DUCTS MEASURE 4-20"" IN DIAMETER. GREENGUARD CERTIFIED. 10 YEAR LIMITED WARRANTY.