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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
with free UPS shipping to the contiguous United States
To use: Turn and shake the bottle or bag gently before use
dry weather
The Bluelab pH test for hydroponics has a double junction reference which provides a longer life than many other pH probes and is a gel filled non-refillable probe
1-1/4" (31
Bluelab Combo Meter NFT Channel & Components with free UPS shipping toTwo Probe equipped meter measures EC and pH. pH4 and pH7 standard solutions included. This Bluelab PH Meter is portable and easy to use measuring pH, nutrients and temperature to help you understand nutrient use, maintain optimum levels and improve plant development.
