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Hydrobuilder - Growonix Water Filtration

Growonix Water Filtration

Clean and Fresh Water for Serious Cultivators

Every Hydroponic grower knows that good plant nutrition starts with clean water. Growonix’s advanced units provide many options to suit your needs, read below to find the right filter for you!

Why Filter with Reverse Osmosis?

Reverse Osmosis Membranes, or “RO Filters,” are the optimal way to remove contaminants and minerals from your water to ensure the water you start with is clean and pure. Often city water sources or wells can contain contaminants, pathogens, and chemicals that can hinder plant growth and adversely affect the performance of added nutrients. Growonix RO filters deliver near-zero PPM water through a multi-filter process that cleans water in stages. First Sediments are removed through a sediment filter, next chemical contaminants are removed with a carbon filter. The RO membrane then removes the smallest remaining contaminants while the final UV sterilization filter removes any pathogens. The result is pure clean water that is perfect for all gardens and growers.

Near-Zero PPM

Most nutrient lines assume you are starting with 0 PPM water which Growonix RO Filters can provide.

Multi-Stage Filtration

Growonix units use an advanced multi-stage process allowing you to control filter level and easily replace individual components as needed.

"My Garden Has Never Been Happier, Growonix really delivers!"

~ GreeTree a Hydrobuilder Customer


Waste Water and Flow Rate

One of the largest factors of filtering water is the amount of waste that is produced in the process. Because Growonix uses the highest-quality components and filters it’s units can deliver 2:1 or 1:1 water to filter water ratios. That means less wasted water and lower water bills. Flow rate is another important factor when selecting a unit and Growonix offers many unique models which provide a wide range of flow rates for any size of garden. Additional booster pumps can be added on some units to increase the flow rate even further if needed.

Incredibly Low Waste Water Ratio

Growonix was the first to introduce 2:1 and 1:1 system ratio and provides optimum performance across it’s entire line of filters.

Wide Range of Flow Rate Options

Find the perfect unit for your needs or add a booster pump for even more performance!


Easy to Change Filters

Growonix units are designed to be easy to use and maintain. Each unit comes with pre-installed filters which are easily removed and replaced when needed. Filter upgrades are also available for various source water contaminant levels. For instance, well water users can benefit from higher sediment filtration provided by pleated sediment filters, whereas city-water users might want the higher flow rate offered by spun sediment filters. The Growonix Flow Box, offered separately or included on the “Deluxe” models, makes monitoring filter status extremely easily through two liquid-filled gauges. When a 30% difference in pressure is seen between input and output, it’s time to clean and change your filters!

Many Filter Options

Growonix offers various filters for each stage of filtration giving you the ability to configure the perfect combination for your unique needs.

Easy to Read Gauges

The Flow Box by Growonix gives you peace of mind knowing you will see exactly when to change out filters.

GX and EX Series

The Growonix GX series is the top of the line Reverse Osmosis filter offered by Growonix. Offered in various sizes and flow rates, these units include the highest-quality components available and provide the lowest waste water ratio available. The EX series by Growonix offers a more affordable alternative while maintaining the high-quality standards Growonix is known for. Both series provide extremely pure water and are durable and dependable in any level of garden. The “Delux” models in each series offers all of the available options for the particular size of filter.


A more affordable option that includes the same high-quality components as the GX series with a few less features.

Shop the Growonix EX Series


The most feature packed filters Growonix offers with sturdy all-metal powder-coated body and rolling casters for easy mobility.

Shop the Growonix GX Series

Made in America

Each filter system is designed, hand built, and tested right here in the United States, using American made, top-of-the-line fittings and tubing. All components are housed in steel powder-coated brackets fabricated in sunny Los Angeles, California. This means you can be sure your filter is of the highest quality and customer service is easily accessible for questions or troubleshooting. One Year Warranty on Parts and Labor for all RO Units.

Optional Upgrades

Growonix also offer many useful upgrades for it’s base-model units including reservoir float valves, booster pumps and electric booster pump shut-off switches. For growers wanting to keep a reservoir topped-off at all times the float valve is essential and easy to install. The Booster pump can be helpful for water sources with low pressure or as a way to increase the flow rate of a unit (within recommended ranges). Together a float valve and booster pump can be used with an optional electronic shut-off to ensure the booster pump is turned off when the reservoir is filled. The Growonix Flow Box is a very useful upgrade that gives you more accurate pressure readings of input and output pressure allowing you to better monitor the health of the unit's filters.

Float Valve and Booster Pump Shut-off

Easily keep a reservoir always filled with filtered water with an auto-shutoff feature for your filter and booster pump

Booster Pump and Flow Box

Easily increase pressure and monitor flow rate and filter health

Shop Growonix today!

Browse the entire Growonix line on HydroBuilder.com