The OptiMax range of pumps satisfy all requirements imposed on modern aquarium pumps: They are perfect for optimal water circulation and displacement in aquariums. It’s impressive with the special compact sizes for optimal and virtually invisible placement. Quiet operation uniformly protects animals and human beings, and low energy consumption continuously saves electricity, and thus real money. The OptiMax aquarium pumps are robust and have a long service life; all of them have an individually adjustable water flow rate. Flexible powerhouses:• Water displacement for underwater use or dry installation• For freshwater and saltwater aquariums Top energy balance - Low power consumption with high pump performance Multi-functional - Ideal for efficient water circulation or for operating an aquarium filter Adjustable - The water flow rate can be easily and variably adjusted Reliable - Extremely powerful and reliable in continuous use Tough, Quiet and robust Practical - 4 suction holders for fastening Robust and smooth - Thanks to the optimised rotor design, the pump runs extremely smooth and has a long life span.Flexible applications - Suitable for fresh water and marine water Technical Data Dimensions (L x W x H) 140 x 135 x 94 mm Rated voltage 230 V / 50 HzPower consumption 31.5 WPower cable length 1,5 mGuarantee 3 years Max. flow rate 2000 l /hMax. head height 2.4 mPressure-side connection 17 mmSuction-side connection 17 mm Suitable for fresh water Yes Suitable for saltwater Yes Setup type Can be setup underwater & dry installed