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Water Filtration & Treatment

Pre-Filters
HydroLogic BIGboy Sediment Filter - Pleated - Cleanable
In Stock: 168
$69.01 $82.79 -17%
HydroLogic TALLBoy ChloraShield Replaceable Carbon Filter Upgrade - 2 GPM - 1 Micron
In Stock: 34
$52.48 $73.45 -29%
HydroLogic Stealth-RO and smallBoy Green Coconut Carbon Filter - 1 GPM - 10 Micron Filtration
In Stock: 301
$20.32 $24.39 -17%
HydroLogic Stealth-RO & smallBoy KDF85 Catalytic Carbon Filter Upgrade - For Stealth-RO & smallBoy Systems
In Stock: 92
$44.31 $50.95 -13%
HydroLogic TALLBoy KDF85 Catalytic Carbon Filter Upgrade
In Stock: 40
$73.84 $84.95 -13%
HydroLogic smallBoy Poly-Spun Sediment Filter - 10in x 2.5in - 5 Micron - Single Use
In Stock: 367
$13.51 $16.24 -17%
General Hydroponics pH Up Liquid - 8oz
In Stock: 754
$8.43 $11.33 -26%
HydroLogic Stealth-RO 150 & 350 Membrane Element - 350 GPD
In Stock: 174
$138.07 $165.60 -17%
HydroLogic Merlin-Garden Pro Green Coconut Carbon Filter - 2 GPM
In Stock: 28
$37.75 $45.21 -17%
HydroLogic Stealth-RO and smallBoy ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 70
$25.46 $35.65 -29%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 48
$114.86 $179.83 -36%
HydroLogic TALLBoy Poly-Spun Sediment Filter - 20in x 2.5in - 5 Micron - Single Use
In Stock: 117
$16.93 $20.31 -17%
HydroLogic PreEvolution ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 39
$90.54 $108.60 -17%
HydroLogic PreEvolution KDF Catalytic Carbon Filter
In Stock: 48
$111.79 $129.35 -14%
HydroLogic Monitor Cross - 1in - Schedule 80 - PVC
In Stock: 8
$167.41
HydroLogic TALLBoy Green Coconut Carbon Filter - 2 GPM - 5 Micron Filtration
In Stock: 69
$38.45 $46.13 -17%
HydroLogic PreEvolution Sediment Filter - Pleated - Cleanable
In Stock: 114
$42.98 $51.56 -17%
HydroLogic ARCS System Stage 1 Replacement Cartridge - Stage 1 - Sediment Filter
In Stock: 19
$108.77 $130.47 -17%
General Hydroponics pH Test Kit Indicator - 1oz
In Stock: 2129
$191.28 / $7.97 per unit
(minimum purchase of 24)
HydroLogic ARCS System Stage Replacement Cartridge - Stage 3 - pH Neutralizing & Remineralizing Filter
In Stock: 9
$134.69 $161.57 -17%
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