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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: 220
$253.19 $373.13 -32%
General Hydroponics PRO pH Up - 6gal
In Stock: 65
$253.19 $373.13 -32%
General Hydroponics PRO pH Down - 2.5gal
In Stock: 61
$113.25 $179.83 -37%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 34
$113.25 $179.83 -37%
General Hydroponics pH Down Liquid - 1gal
In Stock: 5261
$28.91 $41.79 -31%
General Hydroponics pH Up Liquid - 1gal
In Stock: 3889
$28.91 $41.79 -31%
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In Stock: 4159
$16.86 $24.34 -31%
General Hydroponics pH Down Liquid - 32oz
In Stock: 7404
$11.61 $16.78 -31%
General Hydroponics pH Up Liquid - 32oz
In Stock: 3649
$11.61 $16.78 -31%
General Hydroponics pH Test Indicator - 8oz
In Stock: 635
$10.77 $15.55 -31%
General Hydroponics pH Down Liquid - 8oz
In Stock: 528
$8.32 $11.33 -27%
General Hydroponics pH Up Liquid - 8oz
In Stock: 477
$8.32 $11.33 -27%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 1577
$7.85 $10.15 -23%
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