0Cart

Water Filtration & Treatment

Pre-Filters
Sort by:
Price: High to Low
Show:
20
Save 19%
HydroLogic Stealth-RO 300 Water Filtration System - 300 GPD - 18.5in x 16in x 6in
In stock
$332.91 $413.28 -19%
Save 14%
GrowoniX UV Sterilization Filter with Quick-Connect | 2gpm - 3/8in Quick-Connect- 120V AC Power - Destroys 99.9% of Micro-Organisms
Out of stock
$297.24 $344.05 -14%
Save 9%
HydroLogic Hydroid Replacement Encapsulated Prefilter
In stock
$275.70 $304.45 -9%
AXEON HYDRO RO Hyperfiltration Membranes, 2-Pack
In stock
$273.86 $399.00 -31%
Save 13%
HydroLogic Stealth-RO Pressure Booster Pump - 110V
In stock
$266.02 $305.55 -13%
Biobizz Bio-PH- PH Regulator 20L pH DOWN
In stock
$264.46 $386.08 -32%
Save 17%
GrowoniX EX200 High-Flow Reverse Osmosis Filtration System | 2:1 System Ratio - 8.5gph of Pure RO Water - Stainless Steel Liquid-Filled Pressure Gauge - Manu...
Out of stock
$261.81 $316.39 -17%
Save 8%
HydroLogic Hydroid FRP Housings
In stock
$258.06 $279.29 -8%
Biobizz Bio-PH+ PH Regulator 20L pH UP
In stock
$257.85 $376.42 -31%
Save 15%
GrowoniX SlimScrub Water Filtration System | 120gph - 16,000gal Capacity - Filters out 99% of Chlorine and 90% of Sediment - Includes KDF/CAT Carbon Filter
Out of stock
$251.82 $297.85 -15%
Save 19%
HydroLogic Stealth-RO 150 Water Filtration System - 150 GPD
In stock
$234.98 $291.71 -19%
General Hydroponics PRO pH Down - 6gal
In stock
$231.54 $348.72 -34%
General Hydroponics PRO pH Up - 6gal
In stock
$231.54 $348.72 -34%
Save 19%
HydroLogic Evolution-RO 1000 Membrane Element - 600 GPD
In stock
$229.74 $285.18 -19%
Danner Submersible Ultraviolet Clarifier | 10 Watt
Out of stock
$217.41 $273.99 -21%
Save 18%
HydroLogic ARCS System Stage 2 Replacement Cartridge - Stage 2 - Heavy Metal Reduction Filter
In stock
$206.43 $251.21 -18%
Save 18%
HydroLogic TALLBoy De-Chlorinator and Sediment Water Filtration System - 2 GPM - 5 Micron
In stock
$199.73 $243.08 -18%
Save 18%
HydroLogic HyperLogic Membrane Cleaning Cartridge Acid Scale Removal - 4.5in x 20in - Single Use
In stock
$197.60 $240.50 -18%
Save 9%
HydroLogic Evolution-RO 1000 Manifold
In stock
$194.04 $214.29 -9%
Save 11%
AXEON HYDRO RO EZ-Twist Sediment and Carbon Cartridges, 3-pack
In stock
$178.07 $199.00 -11%
Show another 20 products
Product filters
Free Shipping
In Stock
Price
$
–
$
  • $2
  • $95182
Shop Owner
Brand
    Show all (21)