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Water Filtration & Treatment

Pre-Filters
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128
HydroLogic Merlin-Garden Pro Green Coconut Carbon Filter - 2 GPM
In stock
$37.48 $45.21 -17%
Central Coast Garden pH Down Solution | 1gal - Concentrate - 75% Phosphoric Acid
Out of stock
$37.30 $49.95 -25%
Hydrologic MicRO RO Membrane, 75 GPD
Out of stock
$37.26 $59.95 -38%
Alchemist H2O2 Liquid Oxygen 34% Gallon - 1gal
In stock
$36.80
Leader FA5 Clear Filter Housing | 5in - Transparent - 1in Female Thread
In stock
$36.45 $38.57 -5%
GrowoniX Eco Green Coconut Carbon Filter | for EX400-T and Slim Scrub Systems - 2.5in x 20in - 6,000 Gallons of Pure RO Water or 17,000 Gallons of De-Chlorinated Water
Out of stock
$36.05 $46.34 -22%
HydroLogic Evolution-RO Quick Connect Liquid-Filled Pressure Gauge - 1/2in QC Tee
In stock
$33.99 $41.95 -19%
HydroLogic Stealth-RO 300 Flush Valve Flow Restrictor | For Stealth-RO 300 Systems
Out of stock
$32.33 $34.21 -5%
GrowoniX Quick Connect Float Valve with Quick-Connect | for 1/4in or 3/8in
In stock
$31.14 $33.39 -7%
HydroLogic Stealth-RO Replacement Filter Housing | For Stealth-RO Systems
In stock
$29.77 $32.14 -7%
GrowoniX Pleated Sediment Filter | for EX/GX600, EX/GX1000, Lil Boss, and Lil Boss Deluxe - 4.5in x 9.75in - Pleated
Out of stock
$28.66 $42.95 -33%
Polyester Element for Spin-Down Sediment Filters | 1.5in - 140 Mesh
Out of stock
$28.54
General Hydroponics pH Down Liquid - 1gal
In stock
$28.50 $39.06 -27%
General Hydroponics pH Up Liquid - 1gal
In stock
$28.50 $39.06 -27%
AXEON SDF-45-2005 Sediment Filter 4.5" x 20"
Out of stock
$25.93 $31.35 -17%
GrowoniX Eco White Coconut Carbon Filter | for EX400-T, Slim Scrub Systems - 6,000 Gallons of Pure RO Water or 17,000 Gallons of De-Chlorinated Water
Out of stock
$25.53 $38.15 -33%
HydroLogic Stealth-RO and smallBoy ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In stock
$24.74 $35.65 -31%
GrowoniX Spun Sediment Filter | for EX600-T, EX1000-T, XL Scrub, and Sedi Scrub Systems - 4.5in x 20in - Spun
Out of stock
$24.74 $37.09 -33%
AXEON R1 Series Sediment Filter, 5 Micron
In stock
$24.70 $31.35 -21%
Dramm Inline Filter | ILF-175 - 10gpm - 40psi
In stock
$24.06 $26.78 -10%
Cutting Edge Solutions pH Down | 1gal Bottle
Out of stock
$23.94 $33.99 -30%
Cutting Edge Solutions pH Up | 1gal Bottle
Out of stock
$23.94 $33.99 -30%
Biobizz Bio-PH- PH Regulator 1L pH DOWN
In stock
$21.74 $31.50 -31%
Biobizz Bio-PH+ PH Regulator 1L pH UP
In stock
$20.19 $29.26 -31%
HydroLogic Stealth-RO and smallBoy Green Coconut Carbon Filter - 1 GPM - 10 Micron Filtration
In stock
$20.18 $24.39 -17%
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 8,000 Gallons of De-...
Out of stock
$18.62 $23.93 -22%
MICROBE-LIFT Super Dechlorinator Plus | 32oz
In stock
$17.32 $31.99 -46%
Central Coast Garden pH Up Solution | 1gal - 35% Potassium Hydroxide
In stock
$17.00 $49.95 -66%
HydroLogic TALLBoy Poly-Spun Sediment Filter - 20in x 2.5in - 5 Micron - Single Use
In stock
$16.81 $20.31 -17%
General Hydroponics pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial
In stock
$16.62 $22.75 -27%
Microbe Life Hydroponics pH UP, 1 qt
In stock
$16.45 $19.99 -18%
Microbe Life Hydroponics pH DOWN, 1 qt
In stock
$16.45 $19.99 -18%
Alchemist H2O2 Liquid Oxygen 34% (1 Quart)
In stock
$15.80
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%
Leader CRL5 Mesh Sediment Filter | 5in - 20 Micron
In stock
$14.85 $15.71 -5%
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 8,000 Gallons of De-...
Out of stock
$12.88 $19.23 -33%
General Hydroponics pH Down Liquid - 32oz
In stock
$11.44 $15.68 -27%
General Hydroponics pH Up Liquid - 32oz
In stock
$11.44 $15.68 -27%
GrowoniX Replacement Ball Valve | 3/8in
Out of stock
$11.34 $12.15 -7%
Greengro Biologicals Water Conditioner | 8oz - Liquid Concentrate - Removes, Detoxifies & Neutralizes
In stock
$10.67 $18.49 -42%
GrowoniX Replacement Ball Valve | 1/4in
Out of stock
$10.65 $11.41 -7%
General Hydroponics pH Test Indicator - 8oz
In stock
$10.61 $14.53 -27%
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%
Cutting Edge Solutions pH Down | 32oz Bottle
In stock
$9.85 $13.99 -30%
Cutting Edge Solutions pH Up | 32oz Bottle
In stock
$9.85 $13.99 -30%
General Hydroponics pH Down Liquid - 8oz
In stock
$8.20 $10.59 -23%
General Hydroponics pH Up Liquid - 8oz
In stock
$8.20 $10.59 -23%
Dramm In-Line Hose Filter | With Element - 80 Mesh
In stock
$8.07 $8.97 -10%
General Hydroponics pH Test Kit Indicator - 1oz
In stock
$7.74 $10.15 -24%
Netafim Disc Filter Cover O-Ring | 3/4in - 120 Mesh
Out of stock
$7.41 $12.90 -43%
HydroLogic Stealth-RO Double Ended Wrench - For Standard Filter & Membrane Housings
In stock
$5.63 $7.30 -23%
GrowoniX Micron Spun Sediment Filter | for Slim Scrub Systems - 2.5in x 20in - Micron Spun
Out of stock
$5.04 $7.53 -33%
GrowoniX Water Line Divider | 2-Way Splitter - 1/4in - Black
Out of stock
$4.76 $6.65 -28%
HydroLogic Stealth-RO Quick Connect Membrane Elbows | 1/8in NPT x 1/4in QC - Black
Out of stock
$4.31 $4.64 -7%
HydroLogic Stealth-RO Quick Connect Membrane Elbows | 1/8in NPT x 1/4in QC - White
Out of stock
$2.71 $2.93 -8%
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