0Cart

Water Filtration & Treatment

Pre-Filters
Sort by:
Price: High to Low
Show:
16
General Hydroponics PRO pH Down - 2.5gal
In Stock: 58
$105.16 $179.83 -42%
General Hydroponics PRO pH Up - 2.5gal
In Stock: 33
$105.16 $179.83 -42%
HydroLogic smallBoy Dechlorinator & Sediment Water Filtration System - 1 GPM - 5 Micron
In Stock: 41
$104.21 $133.66 -22%
HydroLogic Hydroid Upgraded Flow Restrictor | 1/2in
Out of stock
$103.57
Bluelab Soil pH Pen
Out of stock
$103.36 $210.94 -51%
HydroLogic ARCS System Stage 1 Replacement Cartridge - Stage 1 - Sediment Filter
In Stock: 10
$101.72 $130.47 -22%
Cutting Edge Solutions pH Up, 1 qt, case of 12
In Stock: 21
$100.72 $167.88 -40%
Hydro-Logic Upgrade Kit to Convert Stealth RO 150 to Stealth RO 300
In Stock: 1
$98.05 $140.94 -30%
Cutting Edge Solutions pH Down, 1 gal, case of 4
In Stock: 20
$95.08 $135.96 -30%
Cutting Edge Solutions pH Up, 1 gal, case of 4
In Stock: 19
$95.08 $135.96 -30%
HydroLogic Hydroid Upgraded Flow Restrictor | 3/8in
Out of stock
$92.50
Biobizz Bio-PH- PH Regulator 5L pH DOWN
In Stock: 6
$90.00 $126.76 -29%
Alchemist™ H2O2 Liquid Oxygen - 5gal (OR)
Out of stock
$177.76 / $88.88 per unit
(minimum purchase of 2)
HydroLogic BIGboy Green Coconut Carbon Filter - 7 GPM - 5 Micron Filtration
In Stock: 117
$87.85 $112.68 -22%
GrowoniX Premium KDF85 Catalytic Carbon Filter | for GX1000, GX600, EX1000, EX600, Lil Boss Deluxe, Lil Boss Systems - 8,000 Gallons of Pure RO Water or 17,000 Gallons of De-Chl...
Out of stock
$86.84 $117.99 -26%
HydroLogic Evolution-RO 1000 Wall Mount Bracket - Stainless Steel
In Stock: 18
$86.79 $111.32 -22%
Show other 16 products
Product filters
Free Shipping
In Stock
Price
$
–
$
  • $0
  • $98787
Shop Owner
Brand
Show all (31)