Built for demanding automotive enthusiasts, this 2-piece tube nut and sleeve fitting set delivers reliable performance in custom fluid transfer systems. Crafted from premium-grade 6061-T6 aluminum and treated with a corrosion-resistant black anodized coating, each component offers long-term durability and professional-grade strength. Designed to connect rigid tubing to fittings with precision, the flared interface ensures a tight, vibration-resistant seal that helps maintain consistent fluid flow in high-pressure environments. Whether you're fabricating a custom fuel system, upgrading brakes, or reworking a transmission or cooling line, this versatile fitting combo provides dependable results across a range of automotive applications. Installation is simple—just slide the components onto the tubing, use the appropriate flaring tool, and tighten for a secure connection. Widely trusted in engine modifications, performance retrofits, and race builds, this kit supports clean, leak-free operation under intense conditions. Choose this solution when your build demands compatibility, craftsmanship, and confidence at every connection point.