• Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter

Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double junction reference providing longer life!

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Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter

  • Brand: Bluelab
  • Product Code: BLU24102
  • Availability: In Stock
  • $81.95