Differential Pressure Regulator Lrl-1/4-Qs-6 Without Manometer, With Male Thread And Qs Plug Connector. Controller Function=(* Differential Pressure, Constant, * With Return Flow), Pneumatic Connection, Port 1=G1/4, Pneumatic Connection, Port 2=Qs-6, Mounting Type=Threaded, Nominal Flow Rate Open=241 L/Min