The Ecotech Versa (4x dosing head)VXF-1A 4 Pack of Pumps, including the BaseStation and Base Station Power Supply.This Kit does not include individual power supplies as the Base Stationserves as a 60V power rail for all pumps.The Base station also includes buttons to directly interact with the connectedpumps - for priming and indexing. Allpumps come with push to connect fittings (1/4” OD) and barb adapters (1/4”ID).Features:Wide range dosing capabilities 0.5 - 300ml / minheavy Duty ConsutrctionConsistent and reliable stepper motor with plaetary gear driveSafeguards against over dosing and user errorWireless communication1 Year WarrantyQuiet OperationModular Design (join them together)Easy to MaintainMobius software allowsContinuous Dosingup to 30 dosing points3 Dosing Modes; automatic, calculated or manualIntegration with other Mobius equipmentCapacity of over 200 versa pumps per systemFlow RangeThe Versa can be used for a wide range of aquarium applications. Fine control of very small dosing quantities for additives or liquid salts, large volume dispensing as part of an auto top off system, or for automated water changesHeavy-DutyHigh capacity and commercial-grade construction mean the Versa can run heavily, including in continuous use applications. Tough tubing that is easily replaceable makes for impressive longevity with minor effort to servicePlanetary Gear DriveThe Versa’s drive configuration is optimized for precision and longevity — two essential characteristics for a precise yet robust market- leading peristaltic pumpMobius ProgrammingIncluding safeguards, catch-up, and a myriad of other features: A defining characteristic of EcoTech equipment is the versatility and power of control offered to the aquarium hobbyist. A defining characteristic of Mobius is packaging all this capability in a way that makes programming and control intuitive, quick, and painless.