Vintage Air 2.5-inch Plastic Air & Brake Duct Hose, 10 ft — Flexible Black HVAC/Brake Cooling

Vintage Air's 2.5-inch black plastic duct hose is a 10-foot, flexible air or brake duct line designed for neat routing and reliable airflow in automotive HVAC and brake duct applications.

This lightweight, 10-foot length of 2.5-inch-diameter plastic hose offers a straightforward solution when you need a durable, easy-to-install duct for directing air or providing brake cooling in classic cars, custom builds, or maintenance projects. Manufactured in the United States, the hose ships as a single unit and is sized to balance airflow capacity with flexible routing through tight engine bays or interior ductwork.

Will this hose fit my 2.5-inch duct openings?

Yes — the hose has a nominal 2.5-inch internal diameter intended to match standard 2.5" duct fittings. Because it is a flexible plastic construction, it accommodates minor variations in connector sizes and can be paired with clamps or adapters for a secure joint.

• Nominal diameter: 2.5 inches for common duct fittings
• Flexible material conforms to slightly irregular openings
• Works with standard hose clamps, crimp rings, or barbed adapters

How easy is it to install and route in a vehicle?

Installation is straightforward: cut the hose to the required length, slide over the fitting, and secure with an appropriate clamp. Its flexibility lets you route around components without extensive disassembly, and the 10-foot length covers many single-run or split-run applications.

• Cut-to-length for custom runs; use a utility knife or hose cutter
• Flexibility allows smooth bends and minimal kinking when properly supported
• Compatible with zip ties, clamps, and mounting brackets for secure routing

What environments and systems is this hose suited for?

This plastic duct hose is intended for air handling and brake cooling ducts rather than high-pressure hydraulic lines. It is suitable for HVAC outlets, fresh-air scoops, brake ducting to cool rotors or calipers, and general-purpose ventilation in automotive and light-duty industrial settings.

• Ideal for HVAC vents, cabin fresh-air routing, and ducting in restorations
• Works for brake cooling ducts aimed at rotors or brake calipers
• Not designed for pressurized hydraulic, fuel, or high-temperature exhaust use

Product specifics and packaging: the hose ships as a single 10-foot package with compact package dimensions of approximately 12" L x 9" W x 3" H. It is categorized as an auto part and made in the United States.

Who is this for? If you restore classic cars, build custom hot rods, or maintain performance braking and HVAC systems and need a reliable, low-cost ducting solution, this Vintage Air 2.5" plastic hose delivers flexible routing, simple installation, and sufficient airflow for many ventilation and brake ducting needs. Choose this hose when you want a U.S.-made, cut-to-fit option that pairs easily with common clamps and adapters for a tidy, functional installation.