100FT 3/8ft DOT Air Line with 41 Pc Quick Connect Fittings Kit

In this review of the 100FT 3/8' DOT Air Line with 41 pcs quick connect fittings kit, the bottom line is simple: it is aimed at technicians and DIYers who need a complete, compliant airline repair kit that covers long runs and a variety of connections. The reviewer found the single biggest reason to buy is the combination of a full 100 ft roll of DOT-rated 3/8' nylon tubing plus a broad assortment of stainless steel and PBT push-to-connect fittings that make repairs and new installs fast and durable.

Key Features

• 41 pcs package: Supplies a full set of components including a 100 ft roll of 3/8' DOT tubing, multiple unions, tees, elbows, Y-splitters and connector types so installers rarely need extra parts on the job.
• Premium DOT air line: The Polyamide 12 nylon tubing meets FMVSS 571.106 and SAE J844 implied standards, offering high temperature resistance and long service life for air brake style applications.
• Pneumatic push-to-connect fittings: Stainless steel lock claws and PBT bodies provide corrosion resistance and thousands of push cycles without slipping, which speeds assembly and reduces leaks.
• Wide working range: Rated for service from vacuum up to 145 psi and a proof pressure up to the stated limit, making it suitable for many suspension, trailer and workshop pneumatic tasks.
• Easy installation: Push-to-connect design and pre-applied NPT sealant on male threads let users connect and disconnect tubing quickly while maintaining a tight seal.

Who It's For

This kit is best for semi truck, trailer, RV and automotive owners who perform their own air line repairs or installs, and for small shop technicians who want a single kit that covers many common fittings and a long length of DOT-compliant tubing. The included tube cutter and Teflon tape make it convenient for field repairs and long runs without sourcing extras.

Those who should look elsewhere include users who need metric or non DOT-specific tubing, or projects requiring pressure ratings substantially above the listed working limits. If a project demands specialty fittings beyond straight, tee, elbow and Y-splitters, supplementary parts will be necessary.

Pros & Cons

Pros

• Comprehensive 41 pc assortment plus 100 ft of DOT-rated 3/8' tubing covers most repair and install scenarios.
• Durable materials: Polyamide 12 tubing and stainless steel/PBT fittings resist corrosion and high temperature exposure.
• Push-to-connect design with stainless lock claws simplifies installation and reduces leak points.
• Includes practical accessories like a tube cutter and Teflon tape for immediate use.

Cons

• Working pressure limit around 145 psi may be below requirements for some high-pressure pneumatic systems.

Specifications

Package contents	1 roll 100 ft 3/8' DOT tube, 40 fittings, tube cutter, Teflon tape
Tube material	Polyamide 12 nylon (DOT FMVSS 571.106 compliant)
Fitting materials	Stainless steel lock claws and PBT bodies
Working pressure	Air vacuum to 145 psi (0-0.9 MPa)
Proof pressure	1.32 MPa
Temperature range	0F to +140F (approx 32C to 60C)

Our Verdict

The 100FT 3/8' DOT Air Line with 41 pc quick connect fittings kit is a practical, good-value option for truck, trailer and RV owners and shop technicians who need DOT-compliant tubing plus a wide range of push-to-connect fittings. Its durable materials and inclusive accessories make it a solid choice for routine repairs and new air line runs, provided the system pressure stays within the stated working range.

Frequently Asked Questions

Is the tubing DOT compliant?
The tubing is Polyamide 12 nylon meeting D.O.T. FMVSS 571.106 and SAE J844 implied requirements.

What types of fittings are included?
The kit contains straight unions, tee unions, 90 degree elbows, Y-splitters, straight and 90 degree push&NPT connectors plus a tube cutter and Teflon tape.

What pressure and temperature limits should I expect?
Working pressure is up to 145 psi with a proof pressure around 1.32 MPa and a listed temperature range near freezing to about 140F.