Laing DDC-1T Plus PWM 12V Pump PWM Controllable DDC Pump Maximum Discharge Head: 4.7m, Maximum Flow: 600l/h Dimensions: 62 x 62 x 38 mm 3/8" (8mm) Barbs Power Connector: 4pin Molex, Other Connector: 4pin PWM with PWM and Tachometer Wires