VIVOSUN 330 GPH Water Transfer Utility Pump 115V 1 10HP with Water Hose Kit, Impeller and Gasket Dollies Accelerate oxygen replenishment Accelerate oxygen replenishment Features • Large easy to read displays • No calibration required for conductivity and temperature • Simple push button pH calibration • Selectable values for conductivity and temperature • Flashing high and low alarms • Temperature compensation • Greater tolerance to RF electronic interference provided • International power supply • Replaceable double junction pH probe • Adjustable display brightness • Non volatile memory Probe Tips All probes are interchangeable between all Bluelab productsProper hydration of ph probes is vital to maintain wick All pH probes eventually need to be replaced—they can only house so much reference solution KCl storage solution is required for optimum probe maintenance RO water will reduce probe life Small Frame & Strong Power: The VIVOSUN utility pump is manufactured in aluminium for lighter weight and compactness and it's ready to pump