The Thermo Filter from Eheim is suitable for Freshwater and Marine applications Comes complete with all hoses, pipes, fittings, spray bar and pre-filter drip tray. Uses Eheim 16mm internal hose for both inlet and outlet Filter motor is 24v but filter comes complete with 100-240V 50-60hz input transformer, and UK 3-pin mains connector. Filter media is NOT included- Media Required: 2L x Ehfimech + 6L x EhfiSubstrat New touch pad interface for electronic micro-processor controlled filter. Just set your required out-put and the electronics will do the rest - for all types of aquarium; tropical, marine and planted. 6-Function Electronics: Output Control- Maintains constant set output automatically, adjusting for filter media blocking Boost Function- By simply pressing a button the filter switches to maximum turbo filtration Flow Regulator- Finger tip control of the flow rate. Service Check- At the touch of a button the filter calculates the time remaining till the next cleaning interval. Pulse- Electronically controlled alternating flow rate creating a wave like effect. Self Test- Automatic testing and removal of trapped air.