0Cart

Water Filtration & Treatment

Pre-Filters
Sort by:
Price: High to Low
Show:
32
HydroLogic TALLBoy De-Chlorinator and Sediment Water Filtration System - 2 GPM - 5 Micron
In Stock: 15
$201.19 $243.08 -17%
HydroLogic HyperLogic Membrane Cleaning Cartridge Acid Scale Removal - 4.5in x 20in - Single Use
In Stock: 10
$199.04 $240.50 -17%
HydroLogic Evolution-RO 1000 Manifold
In Stock: 18
$196.98 $214.29 -8%
Twist II Clean Filter | 1in
In Stock: 1
$182.56 $183.92 -1%
AXEON – Big Switch Series Float Switch, 220V
Out of stock
$171.12 $216.23 -21%
HydroLogic Monitor Cross - 1in - Schedule 80 - PVC
In Stock: 8
$163.75 $166.50 -2%
Biobizz Bio-PH- PH Regulator 10L pH DOWN
In Stock: 7
$150.31 $217.84 -31%
Biobizz Bio-PH+ PH Regulator 10L pH UP
In Stock: 5
$146.56 $212.40 -31%
HydroLogic Stealth-RO 150 & 350 Membrane Element - 350 GPD
In Stock: 185
$137.08 $165.60 -17%
HydroLogic ARCS System Stage Replacement Cartridge - Stage 3 - pH Neutralizing & Remineralizing Filter
In Stock: 12
$133.72 $161.57 -17%
HydroLogic BIGboy KDF85 Catalytic Carbon Filter Upgrade
In Stock: 59
$129.28 $149.95 -14%
Rusco Spin-Down Filter | 1.5in 140 mesh
Out of stock
$129.04 $130.00 -1%
AXEON HYDRO RO EZ-Twist Sediment and Carbon Cartridges, 3-pack
Out of stock
$124.20 $199.00 -38%
Alchemist H2O2 Liquid Oxygen 34% 5 Gallon
In Stock: 111
$116.95
Cutting Edge Solutions pH Down, 1 qt, case of 12
In Stock: 28
$114.10 $167.88 -32%
Cutting Edge Solutions pH Up, 1 qt, case of 12
In Stock: 31
$114.10 $167.88 -32%
General Hydroponics PRO pH Down - 2.5gal
In Stock: 68
$111.63 $168.07 -34%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 32
$111.63 $168.07 -34%
HydroLogic smallBoy Dechlorinator & Sediment Water Filtration System - 1 GPM - 5 Micron
In Stock: 36
$110.62 $133.66 -17%
HydroLogic ARCS System Stage 1 Replacement Cartridge - Stage 1 - Sediment Filter
In Stock: 15
$107.98 $130.47 -17%
HydroLogic PreEvolution KDF Catalytic Carbon Filter
In Stock: 45
$98.63 $114.95 -14%
Alchemist™ H2O2 Liquid Oxygen - 5gal (OR)
Out of stock
$94.35 $135.16 -30%
HydroLogic BIGboy Green Coconut Carbon Filter - 7 GPM - 5 Micron Filtration
In Stock: 103
$93.26 $112.68 -17%
Cutting Edge Solutions pH Down, 1 gal, case of 4
In Stock: 52
$92.40 $135.96 -32%
Cutting Edge Solutions pH Up, 1 gal, case of 4
In Stock: 33
$92.40 $135.96 -32%
HydroLogic Evolution-RO 1000 Wall Mount Bracket - Stainless Steel
In Stock: 12
$92.13 $111.32 -17%
HydroLogic PreEvolution ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 29
$89.89 $108.60 -17%
Biobizz Bio-PH- PH Regulator 5L pH DOWN
In Stock: 7
$87.46 $126.76 -31%
Biobizz Bio-PH+ PH Regulator 5L pH UP
In Stock: 7
$81.21 $117.70 -31%
HydroLogic Evolution-RO 1000 Fitting Kit
In Stock: 9
$80.76 $87.86 -8%
Polyester Element for Spin-Down Sediment Filters | 2in - 140 Mesh
Out of stock
$78.54 $79.12 -1%
HydroLogic TALLBoy KDF85 Catalytic Carbon Filter Upgrade
In Stock: 27
$73.30 $84.95 -14%
Show other 32 products
Product filters
Free Shipping
In Stock
Price
$
–
$
  • $2
  • $96624
Shop Owner
Brand
    Show all (20)