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Your cart is empty.2 Inch ID Duct Hose AC Heater Defrost, 6 Feet Plastic, Air Conditioning #91-51P When fully stretched is 6 foot and compresses to 8". All duct hose measurements are ID (inner diameter). Please measure to make sure you order the correct size. See Also Our Cloth Version for Vintage Vehicles # 91-51C. 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. Light weight and extremely flexible, easy to route. Does not rip easily. Not suitable for radiators, vacuum cleaners or medical equipment. Made in the USA!!! Old Air Products has been in business since 1989. We strive to provide quality parts and unsurpassed customer service. Our company specializes in complete aftermarket A/C and Heater Systems and Factory Replacement A/C & Heater Parts for Antique, Classic, and Custom Vehicles. We have many NOS & NORS parts in stock including Heater Valves, Receiver/Driers, Cables, update kits for STV & POA Valves, A/C Hose Assemblies, Vacuum Valves and Electrical Switches. If you have any questions about this item please contact our sales/technical support department or for our other A/C & Heater systems and parts available for antique and classic vehicles.
Jay Rupereaux
September 6, 2025
Used as defroster duct on a Kawasaki Mule heater install and it worked out great.
Elsamue
June 19, 2025
Good
korey critchfield
April 14, 2025
Worth the money. Worked great I made my own heater set up for my Honda talon sidebyside. And this product allowed me to do so
Zack Wade
April 13, 2025
Used this to replace the old rotten cloth defroster ducts in my '53 Ford. It worked great. Just wish it came with a longer piece for the price.
BCB
March 19, 2025
Nice hose, appears well made that's about it.
Old Tim
February 26, 2025
I used this hose to repair the heater/defroster ducting on my Superformance Cobra MK III. The coils are flexible plastic which is easier to work with and is easier to get it to fit over 2" duct than the wire coil in older style duct.
Daniel Bush
December 25, 2024
A+
Carl R. Livingston
December 6, 2024
Hose worked fine , used in a 1972 Chevorlet to connect with a new vintage heat and air system. in order to get the defrost vents connected into this system..
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