Plastic Duct Hose in 3 Inch Diameter. Sold in 6 Feet Long Sections.   When fully stretched is 6 foot and compresses to 8" See Also Our Cloth Version for Vintage Vehicles #91-55C.  Excellent for use with aftermarket A/C and Heater Defrost units and replacing old deteriorated cloth duct hose in Chevy, GM, Chrysler, Dodge, and other vehicles. Plastic hose is more pliable than Cloth. Other sizes available upon request. Made in the ...