Genuine PCL Airflow Hose Tail Coupling Airline Fitting 8mm (5/16") BSP AC21S. AC21S Airflow coupling - Hose Tailpiece for 8mm (5/16") hose. The sleek silver couplings are manufactured using hardened steel to ensure extra durability, and coated with Trivalent chromates to produce a hard, corrosive and scratch-resis tant finish.
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