Thermaltake SR200 CLW0164 Metal Water Reservoir with P500 Water Pump Water Cooling Upgrade Kit Stylish Metal Design body, High capacity liquid tank, Easy to refill and monitor the water level, Ease of installation The ceramic bearings significantly extend the life-expectancy of the pump. Rotational Hose Connectors allows for fast installation and leakage-free reliability Silent and powerful P500(500L/hr) pump provide superb reliability