Pump Up The Volume According to RBL Products, their Cock 'n Lock Couplers and Plugs are intended to increase productivity and improve refinishing quality by boosting air volume to your HVLP gun, or other compliant spray guns. This coupler's springs are located outside the center airflow passageway to allow unrestricted airflow through both the coupler passageway and the plug's full-flow opening. The coupler also exhibits a pre-cocked sleeve position to enable automatic "click in" of the plug before air activation.
