CheeMuii 50FT 1/4" DOT PA12 Air Line Kit with 10 Brass Fittings — DOT-Compliant, 500 PSI

CheeMuii 50FT 1/4" DOT Air Line kit is a complete DOT-compliant pneumatic tubing set with 10 brass fittings, Schrader inflation valves, tube cutter and Teflon tape for installing or repairing air suspension and brake lines.

This kit supplies a long length of DOT-approved PA12 nylon air hose plus a selection of CA360 brass fittings designed for demanding vehicle and workshop use. The components meet common DOT and SAE standards for automotive air systems, resist corrosion and temperature extremes, and include practical accessories to cut, seal and connect on the job. It’s built for durable, leak-resistant service across trailers, trucks, RVs and general pneumatic applications.

What components come in the CheeMuii 50FT kit?

The kit bundles a 50-foot coil of 1/4" DOT-rated PA12 nylon tubing with ten brass fittings and several installation tools. Every item is chosen to allow immediate assembly of air lines without needing extra parts.

• 50 ft of 1/4" DOT PA12 nylon air hose (meets FMVSS 571.106 / SAE J844)
• 2 x 1/4" brass tube tee fittings and 2 x straight union connectors
• 2 x straight push-to-connect with NPT threads and 2 x 360° swivel elbow NPT fittings
• 2 x 1/4" brass Schrader inflation valves with caps, 1 tube cutter and 1 roll of Teflon tape

How durable and safe are the hose and fittings?

Both tubing and fittings are engineered to tolerate wide temperature ranges and high pressures typical of vehicle air systems. The brass fittings are CA360 grade for strength and corrosion resistance, while the PA12 nylon hose resists abrasion, chemicals and high-pressure cycling.

• Operational range: vacuum to 500 PSI; temperatures from -40°F to +248°F (-40°C to +120°C)
• DOT/SAE compliance reduces risk of premature failure in automotive applications
• High-impact, wear-resistant construction for extended service life

How easy is installation and maintenance with this set?

The kit includes practical connectors and a tube cutter so you can measure, cut and join lines on-site quickly. Push-fit and threaded options give flexibility for both permanent and serviceable connections, and the Schrader valves provide an accessible inflation point for air springs.

• Push-to-connect and NPT fittings for fast assembly or threaded sealing
• 360° swivel elbows simplify routing in tight spaces
• Protective valve caps and Teflon tape help prevent leaks and contamination

Which applications are best suited for this air line set?

This kit is designed for vehicle air systems and general pneumatic tasks where DOT compliance and reliability matter. It’s suitable for air suspension repairs, truck and trailer brake lines, RV air circuits, and many workshop or lawn equipment air fittings.

• Air suspension systems for cars, trucks, trailers and RVs
• Repairing leaks or replacing damaged air lines on heavy vehicles
• Industrial and workshop pneumatic routing, and small engine or mower air line fixes

Who is this for: Professional mechanics, fleet maintenance teams and DIY vehicle owners who need a ready-to-use, DOT-rated air tubing solution will benefit most from the CheeMuii 50FT kit. If you require reliable, long-run 1/4" air line with mixed connector types and on-hand installation tools—especially for trucks, trailers or RV air systems—this package supplies the materials and fittings to complete the job with fewer trips for extra parts.