Check the listing for details. H09D Water Cooling Pump With Reservoir Head 6M Large Flow PC Liquid Cooling DIY. Color: Black, Condition: New. Listed at 90.89 USD. Model: OC-H09D Traffic: 12 L/MIN Head: 6±0.5M Working voltage: DC12V/24V Noise: ≤35DB Color: Black Material: POM+ Acrylic + Aluminum alloy Bearing: Ceramic Inlet/Outlet: G1/4 thread Sealing: ≧ 0.2mpa Power interface: Big 4-PIN Rated power: 16W Note to buyers: 1. When filling the liquid, it is necessary to start the pump power repeatedly for several times. This operation helps to drive the liquid into the loop and expel the air. 2. Do not idle the pump! If there is no liquid, turn off the pump power immediately to avoid damage to the pump. 3. After the liquid is added, please open the interface screw above the reservoir, and let the water cooling loop continue to circulate for 24 hours, so that the gas can effectively discharge from the water cooling system.