Essentials Hydroponics PH Buffer 4 (250ml)

Essentials Hydroponics PH Buffer 4 (250ml)

£4.95

n/a

SKU: Essentials Hydroponics PH Buffer 4 (250ml) Category:
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Description

An accurate PH Buffer to calibrate your PH meter with a stable PH of 4.0. Discard used liquid after use. Dont return used liquid to bottle. Can be used in conjunction wiht PH Buffer 7.

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