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Water Filtration & Treatment

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General Hydroponics PRO pH Down - 55gal
In Stock: 32
$2,229.84 $2,583.47 -14%
General Hydroponics PRO pH Up - 55gal
In Stock: 43
$2,229.84 $2,583.47 -14%
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In Stock: 4663
$195.72 / $16.31 per unit
(minimum purchase of 12)
General Hydroponics pH Down Liquid - 1gal
In Stock: 5300
$29.32 $41.79 -30%
General Hydroponics PRO pH Down - 6gal
In Stock: 225
$256.81 $373.13 -31%
General Hydroponics pH Down Liquid - 8oz
In Stock: 1258
$8.43 $11.33 -26%
General Hydroponics PRO pH Down - 2.5gal
In Stock: 86
$114.86 $179.83 -36%
General Hydroponics PRO pH Up - 6gal
In Stock: 103
$256.81 $373.13 -31%
General Hydroponics pH Up Liquid - 1gal
In Stock: 4256
$29.32 $41.79 -30%
General Hydroponics pH Test Indicator - 8oz
In Stock: 643
$131.04 / $10.92 per unit
(minimum purchase of 12)
General Hydroponics pH Up Liquid - 32oz
In Stock: 4005
$11.77 $16.78 -30%
General Hydroponics pH Down Liquid - 32oz
In Stock: 6811
$11.77 $16.78 -30%
General Hydroponics pH Up Liquid - 8oz
In Stock: 1030
$8.43 $11.33 -26%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 56
$114.86 $179.83 -36%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 2729
$191.28 / $7.97 per unit
(minimum purchase of 24)
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