Air Lift Hoses 20610 Air Lift Company has developed dependable air spring suspension products since our inception in 1949. All our efforts are spent ensuring your safety and comfort by designing, engineering and manufacturing the highest quality suspension products. Air Line Fitting Air Line Fitting; 3/8 in.; Black DOT Synflex; 10 feet; Air Lift Airline - 3/8in Black Dot Synflex - 10ft