100FT 1/4 Air Hose Brass Fittings Kit - Complete DOT Push-to-Connect

In this review the 100FT 1/4 Air Hose Brass Fittings Kit is evaluated for installers and DIYers who need a complete DOT-approved air line solution. The bottom line: this kit is built for practical air brake and suspension repairs because it combines 100 ft of SAE J844 PA12 nylon tubing with a wide assortment of solid brass push-to-connect fittings, a cutter and Teflon tape, making on-vehicle routing and leak resolution straightforward for most users.

Key Features

• 100 ft DOT nylon tubing: Provides long reach and DOT SAE J844 compliance for air brake and suspension lines, reducing the need for splices on many projects.
• Precision CA360 brass fittings: Solid brass push-to-connect fittings resist corrosion and withstand up to 250 psi for reliable pneumatic connections.
• Push-to-connect design: Quick PTC connections and 360 degree rotating joints let installers connect, adjust and disassemble tubing without tools in many locations.
• Complete accessory pack: Includes elbows, tees, schrader valves, hex head bushings, cutter and Teflon tape to handle routing, inflation and transitions to NPT ports.
• Wide temperature range: Fittings and tubing rated for low to high temperatures make the kit suitable for outdoor vehicle use across seasons.

Who It's For

This kit is aimed at professional mechanics, roadside repair techs and knowledgeable DIYers who work on air bag suspension, trailer brake lines or pneumatic accessories and need a ready-made, DOT-compliant tube and fitting set. The long 100 ft roll and variety of adapters make it convenient for van, truck and trailer projects where runs can be lengthy.

It is not ideal for someone who needs custom-sized specialty fittings beyond standard 1/4 in OD tubing or who prefers all-metal braided lines; users unfamiliar with plumbing threads should take care when using the included NPT adapters and may want to consult a technician.

Pros & Cons

Pros

• Comprehensive kit reduces shopping around by including tubing, a cutter, Teflon tape and a wide selection of push-to-connect brass fittings.
• High quality CA360 brass fittings offer durability and corrosion resistance for vehicle use.
• Push-to-connect fittings and 360 degree rotation simplify installation and adjustments without disassembly.

Cons

• Some customers reported mixed fit experiences, so adapters and threaded transitions may require attention to sealing technique.
• The kit uses 1/4 in OD tubing only, so those needing different tube diameters must source additional parts.

Specifications

Tube length	100 ft (30.5 m)
Tube type	PA12 Nylon SAE J844 DOT approved
Tube size	1/4 in OD, approx 4.35 mm ID
Fittings material	Solid CA360 brass
Fittings pressure rating	Withstands pressures up to 250 psi
Temperature range	-40F to 160F (-53C to 121C) fittings; tube rated -40F to 248F (-40C to 120C)
Kit contents	Push fittings, elbows, tees, schrader valves, hex bushings, cutter, Teflon tape

Our Verdict

The 100FT 1/4 Air Hose Brass Fittings Kit is a practical, cost-effective solution for anyone repairing or installing vehicle air systems who needs a DOT-approved nylon line and a broad set of brass push-to-connect fittings. It delivers good value for routine air suspension, brake line and pneumatic work, though installers should verify thread fits and sealing on transition adapters for best results.

Frequently Asked Questions

Is the tubing DOT approved?
Yes, the PA12 nylon tubing meets SAE J844 and is DOT approved for many air brake and suspension uses.

Will these fittings handle vehicle temperatures?
Yes, fittings and tubing are rated for wide temperature ranges suitable for typical vehicle exterior use.

Are the push fittings reusable?
Push-to-connect fittings allow disassembly by pressing the release and pulling out the tube, so they can be re-used if not damaged.