3″ x 50′ Blue Polyduct Blower HoseTrident Polyduct is the most flexible, crush proof and rugged blower duct hose for heat, ventilation, and air conditioning* (HVAC). Heavy Duty polypropylene hose, reinforced with a flexible polypropylene rod helix.Features:Excellent flexibility & compressibilityExcellent resistance to crushing, flex fatigue, tearing, and moistureStomp on it and it returns to shape without damageShove it thru tight openings and overheads and it delivers full airflowApplication:Rugged blower duct hose for heat, ventilation and air conditioningSpecifications:Temperature Range: -40F to +225F (-40C to 107C) (wheninsulated)Length (feet): 50′ BoxedInner Diameter (inch): 3″*Meets FMVSS 302 flame resistance Specifications:ID Diameter (inches): 3″Length (Feet): 50’Box Dimensions: 20″H x 20″W x 20″L WT: 9.5 lbsUPC: 704917017518