Water Purification

Hydroponics growers need the cleanest water available to prevent garden damage. Contaminated water can clog hydroponics systems and harm plant health. Listed below are the best water purifiers we've found.

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Active Aqua 100 GPD is truly a thin film composite reverse osmosis membrane. This membrane has been quality tested and works great with most reverse osmosis systems.
Active Aqua's 100 Reverse Osmosis System is a 3 stage system ideal for freshwater use. use it to clean up to 100 gallons of water per day!
The Active Aqua 410 De-Chlorination System is the perfect solution to rid your water supply of chlorine and chloramines to ensure a long, healthy life for your plants.
If you have serious amounts of unwanted muck in your water, you need the Hydro-Logic Big Boy cleanable sediment filter.
$65.95
Save 15%
This 10 micron Big Boy Carbon Filter Replacement is the same unit that ships with the Big Boy De-Chlorinator & Sediment Filter.
$107.95
Save 16%
A KDF85 Carbon Filter greatly increases the ability of the Hydro-Logic Big Boy to filter chlorine, chloramines, iron, hydrogen sulfide and heavy metals from your water.
$374.95
Save 15%
The Hydro-Logic Big Boy de-chlorinator and sediment filter system offers big-time water purification!
The replacement Evolution KDF85 Carbon Pre-Filter can filter up to 2,000 gallons of water before requiring replacement.
Use this HydroLogic pressure booster pump to increase the water flow and efficiency of your Evolution RO1000 reverse osmosis system.
The Evolution Membrane Element replacement filter fits the tankless Evolution RO1000 reverse osmosis system.
The Evolution Membrane Element replacement filter fits the tankless Evolution RO1000 reverse osmosis system.
$634.95
Save 20%
The tankless Hydro-Logic Evolution RO1000 provides 1000 gallons per day flow rate at 60 PSI. That equates to 42 gallons per hour!
This Waste Reducer Elbow replaces the standard green Evolution RO1000 drain elbow to save 50% of the drain water.
$17.95 - $57.95
As you’re aware,your plants grow by absorbing compounds from nutrients, water, and the atmosphere. It’s important for you to realize that Flawless Finish is the only formula made for your plants. That’s crucial because different species of plants respond in different ways to pre-harvest flushing, and because the testing and design of hydroponics flushing products has a direct bearing on whether those products work for you or not
Uses environmentally friendly green coconut carbon and KDF55 filtering media to dramatically reduce chlorine, chemicals, sediments and metallic particles in water.
Are the water lines wearing out on your Hydro-Logic reverse osmosis or water filtration system?
Are the water lines wearing out on your Hydro-Logic reverse osmosis or water filtration system?
The Hydro-Logic Float Valve prevents water from overfilling your reservoir and creating a soggy mess.
The Hydro-Logic water pressure gauge has a female garden hose connector for easy attachment.
Hydro-logic Stealth & Small Boy Float Valve fits a 1/4 inch setup and connects simple and quick. Don't worry about overflowing you reservoirs again!
Are the water lines wearing out on your Hydro-Logic reverse osmosis or water filtration system?
The Hydrologic Flowmaster keeps track of how much water your reverse osmosis system has filtered so you know when it is time to change the filters.
The Dual In-Line TDS Monitor is an efficient and accurate tool for measuring the TDS level of the water going into and coming out of the Merlin Garden Pro reverse osmosis system.
$27.95
Save 20%
If you live in town and have city water, this is the pre-filter you need to use in your Merlin Garden Pro reverse osmosis system.
$127.95
Save 18%
Merlin Membrane Elements are the core of the Merlin Garden Pro reverse osmosis process.
Merlin Membrane Elements are the core of the Merlin Garden Pro reverse osmosis process.
If you've got well water, you'll want to incorporate the Merlin Sediment Pre-filter into your Merlin Garden Pro reverse osmosis system.
The replacement Hydro-Logic KDF85 Catalytic Carbon Filter for the Pre-Evolution Pre-Filter reduces chlorine and chloramines.
Use the Hydro-Logic Pre-Evolution Pre-Filter unit ahead of your Evolution RO1000 system for improved results.
The Hydro-Logic PreEvolution Sediment Filter can be cleaned so it can be reused for a longer period of time.
Use these 1/4-inch Hydro-Logic fittings to configure your reverse osmosis system water lines exactly as you need.
Use these 1/4-inch Hydro-Logic fittings to configure your reverse osmosis system water lines exactly as you need.
Use these 1/4-inch Hydro-Logic fittings to configure your reverse osmosis system water lines exactly as you need.
$84.95
Save 15%
This conversion kit allows you to upgrade your HydroLogic Small Boy de-chlorinator and sediment filter to a 100 gallon per day Reverse Osmosis unit (Stealth RO100).
Incorporating a KDF85 catalytic carbon filter, the HydroLogic Small Boy De-Chlorinator is specifically designed to remove chloramines from city water.
$9.35
Save 15%
The Hydro-Logic Small Boy Sediment Filter removes up to 90% of silt, rust, sand, and other particulate matter in your water supply.
The HydroLogic Small Boy is specifically designed to remove chlorine from city water.
Original equipment Green Carbon Filter replacement for the Hydro-Logic Stealth RO100 or RO200, and the Small Boy water filtration systems.
The Stealth KDF85 Carbon Filter is for reverse osmosis users who have city water which contains chloramines rather than standard chlorine.
The Stealth Pressure Booster Pump increases the water flow and efficiency of the Stealth RO100 and RO200 water filtration systems.
Reverse Osmosis Membrane Element replacement for both the Hydro-Logic Stealth RO100 or Stealth RO200 reverse osmosis water filtration systems.
Replaces the standard membrane for Stealth RO100 and Stealth RO200 systems to compensate for low water pressure or cold water.
Reverse Osmosis Membrane Element replacement for both the Hydro-Logic Stealth RO100 or Stealth RO200 reverse osmosis water filtration systems.
$12.35
Save 15%
Sediment Filter replacement for both the Hydro-Logic Stealth RO100 and Stealth RO200 reverse osmosis water filtration systems.
Use this HydroLogic conversion kit to upgrade your Stealth RO100 to a Stealth RO200 reverse osmosis system.
This Hydro-Logic replacement KDF85 Carbon Filter fits both the Tall Boy water filtering system and the Tall Blue pre-filtering systems.
This Hydro-Logic sediemnt filter fits both the Tall Boy water filtering system and the Tall Blue pre-filtering systems.
The Hydro-Logic green carbon filter replacement is the same unit that ships with the Tall Boy and the Tall Blue systems.
If your water provider uses chloramines, this model Tall Boy also includes a KDF85 catalytic carbon filter that effectively remove chloramines. This filter also removes iron, hydrogen sulfide and heavy metals, making it a great choice for city-dwellers.