Blackstone series dosing pump 5.0 Iph (1.3 gph) @ 7 bar

HI-5001 pH 1.00 Technical Calibration Buffer (500 mL)

HI-4430B/3 Gel Filled ORP Electrode with Gold Contact

HI-4211T ORP Au pin, plastic (PEI) body, screw cap S7 ( PG13.5)

copy of HI-6493005 AMPHEL® ORP ELECTRODE WITH REPLACEABLE BATTERY

HI-1285-9 GroLine pH/EC/TDS/Temperature probe

HI-1005/10 Amplified pH electrode with Matching Pin and Pt100 with 10mt cable

HI-4013-51 Nitrate Module for Half-Cell ISE (1 piece)

HI-38904 Pool Line Quick Hardness Chemical Test Kit