3x 5-Stage Filters (6 months each = 18-month supply)

Iron + Heavy Metals Filter

The rugged meter is built to take knocks

Patent-pending design – Advanced filtration technology

Hanna Dissolved Oxygen Electrolyte Solution (500 mL) Milwaukee MA860 3x 5-Stage Filters (6 monthsThe HI7041L electrolyte fill solution has been developed for Hanna's polarographic dissolved oxygen probes. Having the correct electrolyte solution is crucial to the performance of your dissolved oxygen probe. Made with reagent grade chemicals Long lasting supply of electrolyte HI7041L is designed to refill the electrolyte solution for polarographic dissolved oxygen probes. Polarographic sensor technology is based on the Ross and Clark polarographic