#10 X 24in Aluminum Heat er Line Female/Barb

The #10 X 24in Aluminum Heater Line Female/Barb from VINTAGE AIR is a precision refrigerant hard line designed for custom air conditioning systems in classic and modern vehicles. This U-bend aluminum line connects directly into your A/C compressor or distribution block and routes coolant through tight engine compartments where flexibility is limited. Built for automotive cooling applications, it eliminates the need for multiple hose segments and reduces potential leak points in your climate control system.

Constructed from lightweight aluminum with a natural finish, the #10 X 24in Aluminum Heater Line features a 10 AN female O-ring port on one end and a 5/8-inch hose barb on the other, enabling seamless integration between hard line and rubber hose sections. The U-bend configuration allows it to navigate engine bay constraints without sharp crimps that compromise flow or durability. At 24 inches in length and weighing just 0.25 pounds, this line balances structural rigidity with minimal weight penalty—critical for both performance and longevity in high-temperature environments.

Technicians and engine builders favor this heater line when routing refrigerant from the evaporator core to the main A/C loop in restomod projects, hot rods, and classic car restoration builds. The 10 AN female port accepts industry-standard O-ring adapters and fittings, while the 5/8-inch barb accommodates common automotive heater hose for final connections to blower boxes or auxiliary coolers. Installation requires basic hand tools and hose clamps; ensure proper routing away from exhaust manifolds and moving engine components to prevent premature wear or rupture.