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General Hydroponics PH 4.01 Calibration Solution for Gardening, 8-Ounce
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- General Hydroponics uses the highest quality electronic meter reference solutions
- Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale
- General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used
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|Item Dimensions||6 x 1.3 x 1.8 in||4 x 8 x 4 in||6.1 x 1.2 x 1.9 in||3.3 x 3.2 x 9 in||12 x 10.5 x 3.5 in||8.6 x 3.3 x 3.2 in|
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
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Don't waste your money on pH meters if you grow in soil have used for about 3 years no pH issues at all.
As long as you check your ph Everytime you will have no problem.
Shipping was great!!