#10 to #8 Flare Seal Reducer

The #10 to #8 Flare Seal Reducer is a precision hydraulic adapter designed for marine and boating applications where system pressure and flow demands require stepped AN fitting transitions. Built for serious water enthusiasts who rely on reliable fuel, coolant, and hydraulic connections, this straight reducer bridges #10 AN female ports to #8 AN male outlets, allowing seamless integration between different-sized hose and line configurations. Whether you're running a high-performance inboard engine, upgrading fuel delivery systems, or maintaining complex hydraulic steering and trim circuits, a properly sized adapter is critical to preventing leaks and maintaining system integrity under load.

Manufactured from aerospace-grade aluminum and finished in blue anodize, the #10 to #8 Flare Seal Reducer resists corrosion and saltwater degradation while maintaining structural strength in high-vibration engine compartments. The flare seal design creates a reliable, leak-free connection through a cone-shaped sealing surface that accommodates standard AN hose fittings without requiring additional ferrules or Teflon tape. Its compact footprint (2.85 × 1 × 4.65 inches) fits tight spaces typical of marine engine bays, and the straight-through geometry minimizes pressure drop while ensuring even flow distribution across pressure and return lines.

This adapter is ideal for boaters upgrading fuel systems, installing aftermarket cooling components, or rebuilding hydraulic circuits on inboards and outboards. It pairs seamlessly with any AN-compatible hose, carburetor feeds, transmission coolers, and pressure gauges rated for #10 and #8 sizing. Installation requires only a wrench and basic mechanical know-how—tighten the female end to your #10 source line and the male end to your #8 destination component. For saltwater operators and freshwater enthusiasts alike, keeping spare A-1 PRODUCTS adapters on board ensures quick repairs and system modifications without downtime.