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Replace the housing sump with a new lubricated o-ring if needed
Calcite media is inexpensive compared to chemical feed pumps or soda ash systems
Factory-spec replacement bypass for Fleck 5600
Hanna Instruments HI70442L 1500 mg-L (ppm) TDS Calibration Solution, 500mL Bottle Water Softener Parts & Backwashing Filter Components Simplified PlanningThe Hanna Instruments HI70442L delivers laboratory grade 1500 mg L TDS calibration solution in a professional 500mL bottle designed to maintain solution integrity. This potassium chloride based standard is NIST traceable and specifically formulated to ensure your TDS meters deliver accurate readings in the mid range measurement zone. SPECIFICATIONS Technical Details Manufacturer Hanna Instruments Model Number HI70442L TDS Value 1500 mg L (ppm) at 25C
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