3/8 Hose Barb X 1/4 MPT Fitting Black

The 3/8 Hose Barb X 1/4 MPT Fitting Black is a straight adapter designed to bridge 3/8-inch hose connections with 1/4-inch male pipe thread applications. This fitting serves hydraulic, pneumatic, and fluid transfer systems where secure, leak-free connections between different port sizes are critical. Whether you're building a custom cooling system, assembling fuel lines, or integrating fluid components in industrial or motorsport applications, this adapter provides the interface your system requires for reliable operation.

Manufactured by FRAGOLA, a trusted name in fluid transfer solutions, this fitting is machined from aluminum and finished in black anodized coating for corrosion resistance and durability. The hose barb end accepts 3/8-inch hose with a slip-fit connection, while the 1/4-inch male pipe thread (MPT) end allows direct integration into threaded ports without adapters. The straight design minimizes turbulence and pressure loss, making it ideal for both low and moderate-pressure applications. Black anodizing protects against oxidation while providing a professional appearance in any system configuration.

This adapter is most beneficial for technicians and builders working with fluid systems that require mixed connection types—common in custom cooling loops, fuel injection systems, and hydraulic manifold assemblies. Installation is straightforward: insert the hose barb into 3/8-inch hose and secure with a hose clamp, then thread the 1/4 MPT end into any compatible female NPT port using thread sealant tape for pressure-tight sealing. The compact 1.2 x 1.05 x 4.05-inch profile fits tight spaces without sacrificing functionality. Verify your hose ID and system pressure rating before installation to ensure optimal performance and safety.