0Cart

Water Filtration & Treatment

Pre-Filters
Sort by:
Price: High to Low
Show:
32
Save 14%
HydroLogic Stealth-RO Pressure Booster Pump - 110V
In stock
$264.03 $305.55 -14%
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
$263.72 $316.39 -17%
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
$253.66 $297.85 -15%
Save 10%
HydroLogic Hydroid FRP Housings
In stock
$250.24 $279.29 -10%
Save 19%
HydroLogic Stealth-RO 150 Water Filtration System - 150 GPD
In stock
$236.70 $291.71 -19%
General Hydroponics PRO pH Down - 6gal
In stock
$233.23 $348.72 -33%
General Hydroponics PRO pH Up - 6gal
In stock
$233.23 $348.72 -33%
Save 19%
HydroLogic Evolution-RO 1000 Membrane Element - 600 GPD
In stock
$231.41 $285.18 -19%
Danner Submersible Ultraviolet Clarifier | 10 Watt
Out of stock
$218.99 $273.99 -20%
Save 17%
HydroLogic ARCS System Stage 2 Replacement Cartridge - Stage 2 - Heavy Metal Reduction Filter
In stock
$207.94 $251.21 -17%
Save 17%
HydroLogic TALLBoy De-Chlorinator and Sediment Water Filtration System - 2 GPM - 5 Micron
In stock
$201.19 $243.08 -17%
Save 17%
HydroLogic HyperLogic Membrane Cleaning Cartridge Acid Scale Removal - 4.5in x 20in - Single Use
In stock
$199.04 $240.50 -17%
Save 12%
HydroLogic Evolution-RO 1000 Manifold
In stock
$188.16 $214.29 -12%
Save 13%
AXEON HYDRO RO EZ-Twist Sediment and Carbon Cartridges, 3-pack
In stock
$172.67 $199.00 -13%
AXEON – Big Switch Series Float Switch, 220V
In stock
$171.12 $216.23 -21%
Save 14%
GrowoniX UV Sterilization Filter with Quick-Connect | 1gpm - 1/4in Quick-Connect - 120V AC Power - Destroys 99.9% of Micro-Organisms
Out of stock
$168.62 $196.63 -14%
Save 15%
GrowoniX Mini Scrub Water Filtration System | 60gph - 8,000gal Capacity - Filters out 99% of Chlorine and 90% of Sediment - NSF Listed - Includes KDF/CAT Car...
Out of stock
$168.28 $197.26 -15%
GrowoniX Replacement High-Flow Membrane | for EX800 Systems
Out of stock
$166.46 $218.25 -24%
Save 6%
HydroLogic Monitor Cross - 1in - Schedule 80 - PVC
In stock
$156.42 $166.50 -6%
Save 2%
Twist II Clean Filter | 1in
Out of stock
$154.53 $156.95 -2%
Save 14%
Netafim Manual Disc Filter | 1in
In stock
$138.27 $159.90 -14%
Save 17%
HydroLogic Stealth-RO 150 & 350 Membrane Element - 350 GPD
In stock
$137.08 $165.60 -17%
Save 2%
Rusco Spin-Down Filter | 5.5in W x 17.875in L / Flow capacity 18-100gpm / Max pressure 150 PSI / Port size 2in slip, 140 Mesh
Out of stock
$134.75 $136.85 -2%
Save 17%
HydroLogic ARCS System Stage Replacement Cartridge - Stage 3 - pH Neutralizing & Remineralizing Filter
In stock
$133.72 $161.57 -17%
Save 16%
HydroLogic BIGboy KDF85 Catalytic Carbon Filter Upgrade
In stock
$126.43 $149.95 -16%
GrowoniX Premium KDF85 Catalytic Carbon Filter | for CX4000, EX1000-T, EX600-T, XL Scrubber -17,000 Gallons of Pure RO Water or 34,000 Gallons of De-Chlorina...
Out of stock
$122.16 $159.29 -23%
Cutting Edge Solutions pH Down, 1 qt, case of 12
In stock
$114.10 $167.88 -32%
Cutting Edge Solutions pH Up, 1 qt, case of 12
In stock
$114.10 $167.88 -32%
Save 17%
HydroLogic smallBoy Dechlorinator & Sediment Water Filtration System - 1 GPM - 5 Micron
In stock
$110.62 $133.66 -17%
Save 17%
HydroLogic ARCS System Stage 1 Replacement Cartridge - Stage 1 - Sediment Filter
In stock
$107.98 $130.47 -17%
General Hydroponics PRO pH Down - 2.5gal
In stock
$104.33 $168.07 -38%
General Hydroponics PRO pH Up - 2.5gal
In stock
$104.33 $168.07 -38%
Show another 32 products
Product filters
Free Shipping
In Stock
Price
$
–
$
  • $2
  • $92298
Shop Owner
Brand
    Show all (19)