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GrowoniX High Flow RO Water Filtration System GX400 HF
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Department: Cannabis Grow
$549.66
Growonix GX400 Reverse Osmosis System for 400 GPD
The Growonix GX400-HF runs two GXM-200-HF high flow membranes to produce 400 GPD at 17 GPH and a 2:1 ratio. Those membranes hold a consistent 97% rejection to keep your ppm low.
Purchase directly from Growers HouseGrowonix GX400 Reverse Osmosis System for 400 GPD
The Growonix GX400-HF runs two GXM-200-HF high flow membranes to produce 400 GPD at 17 GPH and a 2:1 ratio. Those membranes hold a consistent 97% rejection to keep your ppm low. It is wrapped in the GX Series patented bracketing on an electrogalvanized, powder-coated steel frame for corrosion resistance. A 2" liquid-filled stainless steel gauge reads input pressure at a glance. Clear pre-filter housings let you watch the filters load. Most growers swap them once they turn coconut brown.
Less Water Waste and Easy Upkeep
The 2:1 ratio uses about half the water of traditional RO systems. A manual flush valve purges salts off the membrane, which adds real life to it. The auto shutoff valve closes the system when you run a float valve or faucet. It carries a green coconut carbon cartridge rated for 8,000 gallons of chlorine reduction and a washable, reusable pleated sediment filter. It runs on as little as 20 PSI of feed pressure. Higher TDS or colder water will lower production.
Key Features
400 GPD output: Dual GXM-200-HF high flow membranes flow 17 gallons per hour at a 2:1 ratio.
97% rejection: Consistent rejection brings your feed-water ppm down.
Half the water waste: The 2:1 ratio uses about 50% less water than traditional RO systems.
Green coconut carbon: Cartridge rated for 8,000 gallons of chlorine reduction.
Washable sediment filter: High-flow pleated element rinses clean and reinstalls.
Electrogalvanized steel frame: Powder-coated for corrosion resistance and component protection.
Liquid-filled gauge: 2" stainless steel pressure gauge for accurate input monitoring.
Manual flush valve: Purges salts off the membrane to extend its life.
Auto shutoff valve: Positive shutoff when used with a float valve or faucet.
Clear pre-filter housings: See when filters load; wall-mountable with 1.5" roll-away casters.
Technical Specifications
Specification
Value
Brand
Growonix
SKU
GX400
Production
400 GPD
Flow rate
~17 gallons per hour
Ratio
2:1 (pure:waste)
Rejection
97% (GXM-200-HF membranes)
Membranes
Two GrowoniX GXM-200-HF high flow
Carbon
Green coconut carbon, 8,000 gal chlorine reduction
Sediment
High-flow pleated, washable/reusable
Frame
Electrogalvanized powder-coated steel; GX patented bracketing
Minimum feed pressure
20 PSI
Recommended feed pressure
40–80 PSI
Recovery
33% (adjustable for lower-quality feed)
Operating temperature
40–105°F
Operating pH
3–11
Dimensions (L x W x H)
14 x 7 x 21 in
Weight
20 lbs






