Trident 4813000 Polyduct HVAC Blower Hose 3" x 50'

Blue in color, this is the most flexible, crush proof and rugged blower duct hose for heat, ventilation and air conditioning. Reinforced with flexible polypropylene rod helix. Stomp on it and it returns to shape without damage. Meets FMVSS 302 flame resistance. Temp range: -40A F to +225A F.