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Water Filtration & Treatment

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General Hydroponics PRO pH Down - 55gal
In Stock: 35
$2,229.84 $2,583.47 -14%
General Hydroponics PRO pH Up - 55gal
In Stock: 46
$2,229.84 $2,583.47 -14%
General Hydroponics PRO pH Down - 6gal
In Stock: 222
$253.19 $373.13 -32%
General Hydroponics PRO pH Up - 6gal
In Stock: 66
$253.19 $373.13 -32%
General Hydroponics PRO pH Down - 2.5gal
In Stock: 63
$113.25 $179.83 -37%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 36
$113.25 $179.83 -37%
General Hydroponics pH Down Liquid - 1gal
In Stock: 5301
$28.91 $41.79 -31%
General Hydroponics pH Up Liquid - 1gal
In Stock: 3963
$28.91 $41.79 -31%
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In Stock: 4207
$16.86 $24.34 -31%
General Hydroponics pH Down Liquid - 32oz
In Stock: 7452
$11.61 $16.78 -31%
General Hydroponics pH Up Liquid - 32oz
In Stock: 3685
$11.61 $16.78 -31%
General Hydroponics pH Test Indicator - 8oz
In Stock: 275
$10.77 $15.55 -31%
General Hydroponics pH Down Liquid - 8oz
In Stock: 557
$8.32 $11.33 -27%
General Hydroponics pH Up Liquid - 8oz
In Stock: 489
$8.32 $11.33 -27%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 1601
$7.85 $10.15 -23%
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