0Cart

Water Filtration & Treatment

Pre-Filters
Sort by:
Price: High to Low
Show:
20
GrowoniX Eco Green Coconut Carbon Filter | for EX100, EX/GX200, GX300, EX/GX400, and Mini Scrub Systems - 2.5in x 9.75in - 2,500 Gallons of Pure RO Water or ...
Out of stock
$18.62 $23.93 -22%
MICROBE-LIFT Super Dechlorinator Plus | 32oz
In stock
$17.32 $31.99 -46%
Save 17%
HydroLogic TALLBoy Poly-Spun Sediment Filter - 20in x 2.5in - 5 Micron - Single Use
In stock
$16.81 $20.31 -17%
Alchemist H2O2 Liquid Oxygen 34% (1 Quart)
In stock
$15.80
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In stock
$15.52 $22.75 -32%
Microbe Life Hydroponics pH UP, 1 qt
In stock
$14.96 $19.99 -25%
Microbe Life Hydroponics pH DOWN, 1 qt
In stock
$14.96 $19.99 -25%
Central Coast Garden pH Down Solution | 32oz - Concentrate - 75% Phosphoric Acid
Out of stock
$14.93 $19.95 -25%
Central Coast Garden pH Up Solution | 32oz - 35% Potassium Hydroxide
Out of stock
$14.93 $19.95 -25%
Save 7%
Leader CRL5 Mesh Sediment Filter | 5in - 20 Micron
In stock
$14.63 $15.71 -7%
Greengro Biologicals Water Conditioner | 8oz - Liquid Concentrate - Removes, Detoxifies & Neutralizes
In stock
$13.50 $18.49 -27%
Save 17%
HydroLogic smallBoy Poly-Spun Sediment Filter - 10in x 2.5in - 5 Micron - Single Use
In stock
$13.41 $16.24 -17%
GrowoniX Spun Sediment Filter | for EX/GX600, EX/GX1000, Lil Boss, and Lil Boss Deluxe - 4.5in x 9.75in - Spun
Out of stock
$13.32 $19.98 -33%
GrowoniX Eco White Coconut Carbon Filter | for EX100, EX/GX200, GX300, EX/GX400, and Mini Scrub Systems - 2.5in x 9.75in - 2,500 Gallons of Pure RO Water or ...
Out of stock
$12.88 $19.23 -33%
Save 8%
GrowoniX Replacement Ball Valve | 3/8in
Out of stock
$11.17 $12.15 -8%
General Hydroponics pH Down Liquid - 32oz
In stock
$10.70 $15.68 -32%
General Hydroponics pH Up Liquid - 32oz
In stock
$10.70 $15.68 -32%
Save 8%
GrowoniX Replacement Ball Valve | 1/4in
Out of stock
$10.49 $11.41 -8%
GrowoniX Micron Spun Sediment Filter | for EX100, EX/GX200, GX300, EX/GX400, and Mini Scrub Systems - 2.5in x 9.75in - Micron Spun
Out of stock
$10.17 $15.28 -33%
General Hydroponics pH Test Indicator - 8oz
In stock
$9.91 $14.53 -32%
Show another 12 products
Product filters
Free Shipping
In Stock
Price
$
–
$
  • $2
  • $95903
Shop Owner
Brand
    Show all (21)