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Water Filtration & Treatment

Pre-Filters
General Hydroponics pH Up Liquid - 8oz
In Stock: 894
$8.43 $11.33 -26%
HydroLogic TALLBoy KDF85 Catalytic Carbon Filter Upgrade
In Stock: 28
$74.38 $84.95 -12%
HydroLogic Stealth-RO & smallBoy KDF85 Catalytic Carbon Filter Upgrade - For Stealth-RO & smallBoy Systems
In Stock: 98
$44.63 $50.95 -12%
HydroLogic smallBoy Poly-Spun Sediment Filter - 10in x 2.5in - 5 Micron - Single Use
In Stock: 315
$13.41 $16.24 -17%
HydroLogic Stealth-RO 150 & 350 Membrane Element - 350 GPD
In Stock: 166
$137.08 $165.60 -17%
HydroLogic Merlin-Garden Pro Green Coconut Carbon Filter - 2 GPM
In Stock: 22
$37.48 $45.21 -17%
HydroLogic Stealth-RO and smallBoy ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 63
$25.46 $35.65 -29%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 50
$114.86 $179.83 -36%
HydroLogic TALLBoy Poly-Spun Sediment Filter - 20in x 2.5in - 5 Micron - Single Use
In Stock: 88
$16.81 $20.31 -17%
HydroLogic PreEvolution ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 50
$89.89 $108.60 -17%
HydroLogic PreEvolution KDF Catalytic Carbon Filter
In Stock: 49
$112.61 $129.35 -13%
HydroLogic Monitor Cross - 1in - Schedule 80 - PVC
In Stock: 1
$168.64
HydroLogic TALLBoy Green Coconut Carbon Filter - 2 GPM - 5 Micron Filtration
In Stock: 62
$38.17 $46.13 -17%
HydroLogic PreEvolution Sediment Filter - Pleated - Cleanable
In Stock: 109
$42.67 $51.56 -17%
HydroLogic ARCS System Stage 1 Replacement Cartridge - Stage 1 - Sediment Filter
In Stock: 17
$107.98 $130.47 -17%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 2165
$172.08 / $7.17 per unit
(minimum purchase of 24)
HydroLogic ARCS System Stage Replacement Cartridge - Stage 3 - pH Neutralizing & Remineralizing Filter
In Stock: 2
$133.72 $161.57 -17%
HydroLogic Evolution-RO 1000 Manifold
In Stock: 30
$202.86 $214.29 -5%
AXEON N-12000 Reverse Osmosis System, 12000 GPD, 220V
Out of stock
$17,430.71 $21,072.66 -17%
Leader CRL5 Mesh Sediment Filter | 5in - 20 Micron
In Stock: 483
$15.75
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