EK-Quantum Convection DDC - Silver is an aluminum heatsink for DDC pumps. This add-on vastly improves the cooling performance of the motor and electronics and thus prolongs the lifespan of the water pump. It is made of CNC-machined aluminum that is anodized. Optimal heat transfer is ensured by the use of an enclosed thermal pad. Due to its metallic construction and finned design EK-Quantum Convection DDC amplifies the effect of airflow therefore placing the water pump in front of any fan or radiator will dramatically improve the cooling performance.