Field Controls 8" Air Boosters for Round Metal Duct or Flex Duct (up to 425 CFM)

Field Air Boosters improve air flow and distribution of conditioned air to "problem" rooms in homes and businesses. They are mounted in ductwork and improve air flow by up to 1400 cfm, improving heating/cooling system efficiency and saving energy. There are nine models designed for round or square ducts up to 14" in diameter. Features Increase air flow to problem rooms from 80 CFM to 1400 CFM depending on model Designed for use in 4", 5", 6", 8", 10", 12" and 14" round metal or flexible ductwork Easy installation Heavy-duty motor Motor is designed for years of trouble free operation