Apera GroStar pH Calibration Kit pH 4/7/10 HGC706141 To clean the HEPA filter

To clean the HEPA filter use an air compressor to push air from the inside of the filter out

Overall product dimensions are 22

Formerly HyperLogic HL 13561

New/unused

auto-shutdown

Apera GroStar pH Calibration Kit pH 4/7/10 HGC706141 To clean the HEPA filterGroStar by Apera pH calibration kit (pH 4 7 10, 8 oz. each) Kit Includes: (1) pH 4. 0 calibration solution 8 oz. (1) pH 7. 0 calibration solution 8 oz. (1) pH 10. 0 calibration solution 8 oz. pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings High accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25C (77F). ideal for the calibration of all pH meters Color coded, double