#12 Tube Sleeve Black

The Fragola #12 Tube Sleeve Black is an essential component for any high-performance fluid transfer system requiring the secure routing of 3/4 inch hard lines. Engineered to interface seamlessly with -12 AN fittings, this sleeve provides the necessary structural support for 37-degree flared tubing. By distributing the clamping force of the tube nut evenly across the flare, it ensures a leak-proof seal that can withstand the vibrations and pressure fluctuations common in automotive and industrial plumbing applications.

Constructed from high-strength aluminum, this Fragola 481912-BL sleeve offers a significant weight advantage over traditional steel alternatives without sacrificing structural integrity. The black anodized finish serves a dual purpose: it provides a professional, stealthy aesthetic for modern engine bays while offering a layer of chemical and corrosion resistance. This makes it an ideal choice for enthusiasts looking to buy durable components for fuel, oil, or coolant systems where long-term reliability is non-negotiable.

Technical specifications confirm that this component is designed specifically for 3/4 inch outer diameter tubing. When performing a custom plumbing installation, using a dedicated tube sleeve like this one is critical for maintaining the geometry of the flare during assembly. Proper fitment prevents the tube from rotating or deforming when the nut is torqued, which is a common failure point in budget-grade plumbing. Review your system requirements to ensure that a -12 AN size is appropriate for your flow rate needs.

For those seeking professional-grade hardware for sale, the Fragola #12 Tube Sleeve Black represents a reliable solution for hard-line integration. Whether you are building a custom race car or upgrading a marine fluid system, the precision machining of this aluminum sleeve guarantees compatibility with standard AN-style adapters. Ensuring your plumbing uses matching components from a reputable manufacturer like Fragola Performance Systems is the best way to avoid the costly downtime associated with fitting failures.