Oakton (WD-35653-01) pH 4.01 Pouches 20-Box r30 bb 93 4x41 2 whole-house filters

whole-house filters

5" Big Blue KDF-85/GAC Iron & Hydrogen Sulfide Removal Filter

Verify accuracy with pH buffer solutions and recalibrate if readings drift beyond acceptable range

Dual O-ring seal

straightforward maintenance

Oakton (WD-35653-01) pH 4.01 Pouches 20-Box r30 bb 93 4x41 2 whole-house filtersOakton Laboratory Calibration Solutions Oakton WD 35653 01 pH 4. 01 Calibration Pouches NIST traceable single use pH buffer pouches for reliable field and laboratory calibration NIST Traceable Standards 0. 01 pH Accuracy at 25C Premixed & Ready to Use 20 Single Use Pouches The Oakton WD 35653 01 delivers laboratory grade pH calibration in a convenient single use format. Each pouch contains pH 4. 01 buffer solution standardized against NIST references