Waterproof pt. Tester - 35 - pH & TDSItem # HN-HDR950
- Simple push-button calibration
- Feature easy-to-read displays and HOLD function
- PC tester tests conductivity, TDS and pH
- Stainless steel electrodes with replaceable sensors
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75 gal. Reservoir Cover - 43.5 x 43.5 in.
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