pH & EC Meter Calibration Solution

GH pH 7.01 Calibration Solution 8 oz
Brand: General Hydroponics
General Hydroponics™ uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics™ technicians check each batch to ensure that our solutions …
Item #: 211551
In Stock

List Price:	~~$8.36~~
Price:	$6.17
You Save:	$2.19

GH pH 4.01 Calibration Solution 8 oz
Brand: General Hydroponics
General Hydroponics™ uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics™ technicians check each batch to ensure that our solutions …
Item #: 211554
In Stock

List Price:	~~$8.36~~
Price:	$6.17
You Save:	$2.19

Bluelab pH 7.0 Calibration Solution 500 ml
Brand: BlueLab
"pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solution should be stored in a cool place out …
Item #: 131887
In Stock

Pack of 6
Price:	$63.48
	$10.58 (ea)