Product features: The completely redesigned classic – the entry level series of filter and watercourse pumps from OASE Extremely economical: Thanks to its energy-efficient motor, the AquaMax Eco Classic constantly saves electricity—and therefore money—while in operation Suitable for use on swim ponds and bathing ponds (used in an exterior pump chamber) Environmental Function Control (EFC by OASE) protects against dry running and blocking Uncompromisingly reliable, with high cleaning force, it pumps pond water and coarse debris particles, up to 8 mm in size, into a filter. FULLY ECONOMICAL: The energy-efficient motor of the AquaMax Eco Classic saves electricity – and therefore money SWIMMING AND NATURAL POOLS: Possible to use in an external pump vault UP TO 40 PERCENT LESS: The 2500 E and 3500 E require so much less energy than the predecessor model INCLUDED: The special hose adapter with threaded collar for different hose sizes (25/32/38 mm) is included in the scope of delivery ENVIRONMENTAL FUNCTION CONTROL: This is EFC, by OASE: no problems caused by the pump being blocked or running dry DIRT BE GONE: Reliable conveying of plant parts or fish faeces up to a size of 8 mm Filter & watercourse pump  Technical Data: Dimensions: L 280 x W 230 x H 140mm Rated Voltage: 220-240 V/ 50Hz Power consumption: 100W Power cable length: 10m Weight: 5kg 3 Years Warranty Max. flow rate: 183 L/min Max flow rate: 11000 L/hour Max.head height: 3.3m Outlet size: 2\' Inlet Size: G 1 ½ Hose Connction: 25 / 32 / 38mm Hose Connection: 1\', 1 ¼\', 1 ½\' Filter intake surface: 810 cm2 Max coarse debris displacement: 8mm Electronic adjustment: No Usage type: Submersed or inline capable