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general hydroponics ph 4.01 946ml


Price: $24.99 + $33.18 Shipping
In stock
Description
General Hydroponics pH 4.01 Calibration Solution is used to adjust your pH meter using the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). Easy to use, just dip your electrode into a small amount of the buffer and adjust the meter to read 4.01. Do not reuse solution. Suitable for all makes and models of pH pens and meters. Each batch is carefully checked by General Hydroponics technicians to ensure that it is precisely calibrated and yields reliable readings every time they are used.
$24.99 + $33.18 Shipping
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Product details
Shipping Weight: 1.36 Kg
SKU: 2007
Date first available: July 06 2017
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Jimmyjim

  

March 25, 2018

Verified Purchase

Works fine and is very economical

Tiff

  Five Stars

December 16, 2016

Verified Purchase

to pricey but it is what it is

bushboar

  Five Stars

August 11, 2017

Verified Purchase

Product as described.