Apex Probes

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• Sale! Apex Controller

  Apex Lab Grade Salinity/Conductivity Probe – Neptune Systems

  $249.99 Original price was: $249.99.$75.00Current price is: $75.00. Add to cart
• Sale! Apex Controller

  Double Junction Lab Grade ORP Probe – Neptune Systems

  $129.99 Original price was: $129.99.$39.00Current price is: $39.00. Add to cart
• Sale! Apex Controller

  Double Junction Lab Grade pH Probe – Neptune Systems

  $119.99 Original price was: $119.99.$36.00Current price is: $36.00. Add to cart
• Sale! Apex Controller

  PH Calibration Buffer (Combo Pack) 4.0, 7.0, 10.0 – Hanna Instruments

  $5.16 Original price was: $5.16.$2.06Current price is: $2.06. Add to cart