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  HF CTA RO membrane module, 18 GPD

  $119.00 Original price was: $119.00.$29.75Current price is: $29.75.
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  HM Digital (COM-100) Waterproof EC-TDS-Temperature Combo Meter-Monitor

  $69.95 Original price was: $69.95.$20.98Current price is: $20.98.
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  HM Digital (CT-1) Clean Tap TDS Meter-Monitor Only

  $25.48 Original price was: $25.48.$7.64Current price is: $7.64.
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  HM Digital (DM-1) Residential Inline Dual TDS Meter-Monitor

  $45.00 Original price was: $45.00.$13.50Current price is: $13.50.
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  HM Digital (DM-2) Industrial Inline Dual TDS Meter-Monitor; 1/4″ JG

  $78.94 Original price was: $78.94.$23.68Current price is: $23.68.
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  HM Digital (PM-2) External In-Line TDS Purity Monitor 1-4″ Quick Connect

  $79.00 Original price was: $79.00.$23.70Current price is: $23.70.
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  HM Digital (TDS-3) Handheld Digital TDS Meter

  $22.20 Original price was: $22.20.$6.66Current price is: $6.66.
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  HM Digital 2-Stage Inline TDS Monitor

  $39.00 Original price was: $39.00.$11.70Current price is: $11.70.
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  HM Digital C1000 TDS and EC Calibration NaCl Solution – 1000 ppm 3oz/89ml

  $10.01 Original price was: $10.01.$3.00Current price is: $3.00.
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  HM Digital C342 TDS and EC Calibration Solution – 342 ppm NaCl 3oz/89mL

  $9.00 Original price was: $9.00.$2.70Current price is: $2.70.
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  HM Digital CIC-152 Dual Control Dosing/Injection TDS/EC Controller

  $301.23 Original price was: $301.23.$60.25Current price is: $60.25.
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  HM Digital COM-100 Professional Waterproof TDS Meter & Thermometer

  $56.95 Original price was: $56.95.$17.09Current price is: $17.09.