Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter stocked • Makes 37

• Makes 37

Application: Cold-water garden and outdoor filtration

Telephone number: +34 91 562 04 20

When germinating seeds

When expanded

Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter stocked • Makes 37Easy 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! Probe Tips All probes are interchangeable between all Bluelab products All probes carry a 6 month warranty Proper hydration of pH probes is vital to maintain wick All pH probes eventually