90PCS Brass Tube Compression Fittings Kit - Durable Repair Set

Our review of this 90PCS Brass Tube Compression Fittings Kit finds it best suited for technicians and home mechanics who need a durable, all-in-one set for low to medium pressure tubing repairs. The biggest reason to buy is the combination of material quality and breadth of sizes: the kit contains unions and ferrules across five common tubing ODs and includes Teflon tape, making it a practical choice for oil, gas, water and pneumatic lines where welding or flaring is impractical. Installation is straightforward for routine work and the brass construction promises long-term corrosion resistance.

Key Features

• Premium brass construction: Provides strong wear and corrosion resistance for longer service life on metal and plastic tubing.
• Wide size assortment: Contains unions and ferrules in 1/8' to 1/2' OD sizes so you can handle common truck airline and industrial lines without buying parts separately.
• No special tools required: Compression fittings install without flaring or soldering, simplifying repairs and reducing setup time on the job.
• Working pressure and temperature: Rated to 200 PSI and -65F to +250F, suitable for many low and medium pressure systems.
• Standards compliance: Meets ASA, ASME and SAE style expectations for sealing and repeatability in non-corrosive and many corrosive environments.

Who It's For

This kit is ideal for fleet maintenance teams, HVAC and plumbing hobbyists, and industrial technicians who need a versatile set of compression unions and ferrules on hand. The included range of sizes and the 4 m Teflon tape make it useful for on-site repairs to air lines, water lines and non-critical fuel or oil lines.

Do not choose this kit if you require fittings for very high pressure systems above 200 PSI, or if your application involves continuous heavy vibration and movement where flared or welded connections would be preferred. For very specialized materials or metric tubing sizes, a dedicated parts source may be a better fit.

Pros & Cons

Pros

• Good material quality and durability from brass construction that resists corrosion.
• Comprehensive assortment of unions and ferrules spanning common tubing ODs for immediate repairs.
• Easy installation without flaring or soldering, saving time and tools on routine jobs.
• Includes Teflon tape to help ensure leak-free initial assembly.

Cons

• Rated for up to 200 PSI, so not suited for higher-pressure hydraulic systems.
• Not intended for applications with excessive vibration or constant tube movement where other connection methods may be more reliable.

Specifications

Contents	90 pieces: unions and ferrules plus 1pc 4 m Teflon tape
Fitting sizes	1/8', 3/16', 1/4', 3/8', 1/2' OD
Material	High-quality brass
Working pressure	Up to 200 PSI
Temperature range	-65F to +250F (-53C to +121C)
Compatibility	Copper, brass, aluminum or plastic tubing

Our Verdict

This 90PCS brass compression fittings kit is a practical, cost-effective choice for on-site repairs and maintenance where reliable, corrosion-resistant connections are needed at low to medium pressure. It delivers broad size coverage and straightforward installation, making it good value for technicians and hobbyists who want a single kit to handle common tubing jobs.

Frequently Asked Questions

Can these fittings handle high temperature applications?
Yes, the fittings are rated to +250F which covers many hot water and industrial line needs, but check system limits and seals for higher heat exposure.

Do I need special tools to install them?
No special tools or flaring are required; standard wrenches and the included Teflon tape are sufficient for typical installations.

Are these fittings suitable for all tubing materials?
They are compatible with copper, brass, aluminum and many plastic tubing types for low to medium pressure systems.