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!
Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter
- Brand: Bluelab
- Product Code: BLU24102
- Availability: In Stock