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Water Filtration & Treatment

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General Hydroponics PRO pH Down - 55gal
In Stock: 39
$2,246.12 $2,583.47 -13%
General Hydroponics PRO pH Up - 55gal
In Stock: 43
$2,246.12 $2,583.47 -13%
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In Stock: 5239
$202.32 / $16.86 per unit
(minimum purchase of 12)
General Hydroponics pH Down Liquid - 1gal
In Stock: 4735
$28.91 $41.79 -31%
General Hydroponics PRO pH Down - 6gal
In Stock: 195
$253.19 $373.13 -32%
General Hydroponics pH Down Liquid - 8oz
In Stock: 1583
$8.32 $11.33 -27%
General Hydroponics pH Up Liquid - 1gal
In Stock: 3715
$28.91 $41.79 -31%
General Hydroponics PRO pH Up - 6gal
In Stock: 115
$253.19 $373.13 -32%
General Hydroponics PRO pH Down - 2.5gal
In Stock: 98
$113.25 $179.83 -37%
General Hydroponics pH Test Indicator - 8oz
In Stock: 1171
$129.24 / $10.77 per unit
(minimum purchase of 12)
General Hydroponics pH Up Liquid - 32oz
In Stock: 4480
$11.61 $16.78 -31%
General Hydroponics pH Down Liquid - 32oz
In Stock: 6711
$11.61 $16.78 -31%
General Hydroponics pH Up Liquid - 8oz
In Stock: 888
$8.32 $11.33 -27%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 56
$113.25 $179.83 -37%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 2381
$169.68 / $7.07 per unit
(minimum purchase of 24)
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