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Built for durability and reliable sealing across demanding applications
Monitor output TDS or resistivity and replace when breakthrough occurs or annually
Inspect the valve seat and interior bore for debris or mineral buildup
Replace cartridge every 6 to 12 months depending on iron and lead levels in source water
Hanna (HI7004-M) Ph 4.01 Buffer Caliberation Solution; 230ML PureT (SSMH-4014-12) 4" x 14" x 1/2" 304 Stainless Steel Membrane Housing Built for durability and reliableHanna Instruments HI7004 M pH 4. 01 Calibration Buffer Solution NIST traceable precision buffer for accurate pH meter calibration in acidic range applications 230mL Bottle pH 4. 01 Standard NIST Traceable Batch Certified The Hanna HI7004 M is a laboratory grade pH 4. 01 buffer solution prepared to precise formulas and standardized against NIST calibrated reference meters. Each 230mL bottle includes batch number, expiration date, and a temperature
