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It is recommended to use ½ cup or 4 oz
Electrode: Replaceable glass sensor and reference tube electrodes
What contaminants does the KDF-85 filter remove
HM Digital Replacement pH sensor for HM-500/ HM-200 hydro-components setAttribute('aria-selected'Description HM Digital Replacement pH sensor for HM 200 HM 500 HM Digital Replacement pH sensor for HM 200 HM 500: Features Features: Measures pH (Replacement pH sensor for HM 500) Compatibility: This product is compatible with the following items. HM Digital Hydromaster Portable pH TDS EC Temp (Item Number HM HM 200) HM Digital Hydromaster Portable pH TDS EC Temp: HM Digital Hydromaster 500 Continuous pH TDS EC Temp meter (Item Number HM HM 500)
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