3in to 2.5in Hose Barb Reducer Coupler Adapter

The ICT BILLET 3in to 2.5in Hose Barb Reducer Coupler Adapter (AN627-48-40A) is a precision-engineered aluminum fitting designed to bridge hose connections of different diameters in fluid transfer systems. This straight reducer adapter accepts a 3-inch hose barb inlet and outputs a 2.5-inch hose barb outlet, making it essential for hydraulic, pneumatic, fuel, and coolant applications where system pressure or flow requirements demand a stepped transition between hose sizes.

Manufactured from aluminum and finished with natural anodizing, this adapter provides corrosion resistance while maintaining a lightweight profile at only 0.15 lbs. The barbed design ensures a secure, leak-resistant seal when inserted into properly sized hoses, eliminating the need for additional clamps in many applications—though barbed fittings are often paired with hose clamps for high-pressure or critical applications. The AN627-48-40A designation follows military/aerospace fluid system standards, ensuring compatibility with equipment and systems that reference AN (Army-Navy) fitting specifications.

This reducer coupler adapter serves technicians, fabricators, and operators who need to downsize hose runs for space constraints, pressure optimization, or flow control. Common applications include automotive cooling systems, industrial hydraulic lines, marine cooling loops, off-road recovery equipment, and aircraft fuel or pneumatic networks. The straight configuration allows the adapter to fit into tight routing scenarios where angled fittings would interfere with surrounding components.

ICT BILLET is recognized for producing high-tolerance aluminum fittings that meet or exceed AN standards. This adapter's natural anodized finish balances weight savings with durability, though users in saltwater or corrosive environments may consider supplementary protection or stainless alternatives for extended service life.