$17.99
General Hydroponics® pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1...
$8.99
General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands...
$22.99
General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands...
$22.99
General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands...
$8.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
$11.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
$8.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
$20.99
The perfect solution to store and hydrate your Bluelab pH products. Bluelab® pH Probe KCl...
$1.99
Milwaukee standard calibration solutions are available in one use 20 ml sachets. Sachets are sealed...
$8.99
For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH...
$12.99
The perfect solution to store and hydrate your Bluelab pH products. Bluelab® pH Probe KCl...
$2.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
$11.99
The EC2.77 solution is used as a reference or checking solution to ensure you have...
$8.99
The EC2.77 solution is used as a reference or checking solution to ensure you have...
$11.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
$2.99
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the...
