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CX21000- 21000 GPD Commercial Grade-High Flow Reverse Osmosis Filtration System
In stock
SKU
CX21000
Flows 875 gallons per hour of pure RO water with an astounding 1:1 ratio
CX SERIES:
CX Series systems are hydrants. Never run out of water again! A complete line of commercial water filtration ranging from 4,000 GPD all the way to 21,000 GPD.
Need more flow? Buy two and have operational redundancy, safeguarding against maintenance downtime.
Recycling is a standard feature on every CX Series model. It is a fluid circuit topology that routes the drain water from the membrane stack back through the membranes again for another pass—often called a "second pass" system. Recycling allows for reverse system ratios such as 1 part drain to 4 parts purified water. The circuit contains a stainless needle valve and precision flow meter to adjust the dynamics.
Growonix CX Series Systems Features:
High Flow Cold Water Extra Low Energy RO Membranes- 4,000-21,000 Gallons Per Day
- Programmable Digital RO Controller with Dual TDS and Temp Probes
- 1:4 System Ratios (1 gal drain to 4 gals purified water)
- Recycle Circuit recycles drain water back through the system for a second pass
- Quick Change Carbon Filters (CX4000 only)
- Carbon flush valve (CX4000 with Quick Change Carbon Filters only)
- Tank Float Switch
- Stainless Steel Vertical Multi-Stage Pumps
- Automatic High-Pressure Flush
- Permeate Flush
Optional Accessories for CX21000 Systems:
Click here to view the GrowoniX™ Product Matrix Guide.
Where else does something this cool come from?! As always, all GrowoniX RO systems are hand built one at a time right here in southern California. We take pride in our manufacturing and design, only utilizing the best components available for the job. Life's too short for the headache of poorly designed systems and component failures. Free up your time by getting it right the first time.
| Product Name | CX21000- 21000 GPD Commercial Grade-High Flow Reverse Osmosis Filtration System |
|---|---|
| Permeate Flow GPD | 21,000 |
| Permeate Flow GPH | 875 |
| Min Feed Flow GPM | 29.2 |
| Feed Water Pressure Range | 40 psi - 80 psi |
| Feed Water Temp Range | 40°F - 90°F |
| System Ratio | Variable (1:4 for Max Efficiency) |
| Nominal Salt Rejection % | Up to 98.5% |
| Feed Input Connection | 1" FNPT/ 1"CTS |
| Permeate Flow Connection | 3/4" CTS |
| Waste Line Connection | 3/4" CTS |
| Sediment Filter | SF-4520-SP |
| Membrane | GXM-3000-HF |
| Membrane Flush Valve | Auto |
| Membrane Material | Polyamide (PA) |
| Membrane Quantity | 7 |
| Pump | Single or Three Phase Vertical Multi-Stage Pump |
| Voltage Amp Draw | 1Ph (12.3-13.1) 3Ph. (9.8) |
| Standard Voltage | 208-230V 60Hz |
| Ambient Temperature Range | 40°F - 115°F |
| Max Feed Water TDS | <2006 |
| pH Continuous | 9 - 10 Ph |
| Chlorine Tolerance | <0.1 ppm |
| Max Hardness gpg | 6 |
| Max SDI Rating SDI | <9 |
| Max Turbidity NTU | 7 |
| Dimensions L x W x H inch | 33x27x61 |
| Frame | Powder Coated Steel Bracket |
| Gauges | 2" 160LB 1/8" center back mount, liquid filled and 2" 300LB 1/4" center back mount, liquid filled |
| Casters | Yes |
| Filter Housing Material | Polypropylene |
| Membrane Housing Material | Stainless Steel |
| Water Treatment Type | Reverse Osmosis |
N/A
Big Filters needed
GrowoniX CX4000 - 4000 GPD Reverse Osmosis Filtration System Questions & Answers
WATER TEMPERATURE FAQ's
How does water temperature effect flow rates through RO filters?
Between 77° and 50° water system production declines by 50%, as cold water is more dense, more viscous, and more difficult to move through the membranes.
What can be done to combat the effects of cold water on RO membranes?
Increasing the water pressure with a booster pump. Increasing the feed water temperature, which some people do by mixing warm and cold water from a diverter valve.
SYSTEM RATIOS FAQ's
Does the system ratio (waste ratio) change over time?
System ratios can change over time if the flow restrictor starts clogging due to hard feed water conditions.
Does the system ratio change with water temperature?
System ratios (waste ratios) can drift with cold feed water. Water travels the path of least resistance — the drain line! It’s important to check the system ratio during the winter months and adjust if necessary.
How can the system ratio be adjusted?
System ratios can be tuned with a ball valve or Flow Box. Never go lower than the system was intended for.
WATER PRESSURE FAQ's
How much water pressure is needed to run an RO system properly?
RO membranes require 40 psi of incoming pressure to produce even a drop of water.
What’s the maximum feed water pressure that an RO system should run on?
Incoming feed water pressure on all water filters, always and everywhere, should be no more than 80psi. Plastic filter housings cannot handle more pressure.
WELL WATER FAQ's
Can all GrowoniX water filters be used with well water?
Well water is generally too dirty for small RO membranes (100GPD through 400GPD systems). The large 4” membranes of the bigger systems (600GPD and larger) are recommended for well water treatment, unless the water demand is really low.
Are there any special filters needed to treat well water?
KDF85/ catalytic carbon filters are a must for well water treatment. This premium catalytic carbon filter with a bed of KDF85 media can reduce iron, hydrogen sulfide, heavy metals, and bacteria—all things that wreak havoc on RO components—especially membranes. Other consideration for special filters can only be deduced with a laboratory water analysis.
Does GrowoniX help with well water analysis?
They do. Just send Growonix your water analysis and they will look at it for free. If you don’t have a recent analysis, you can either use a local water lab, or purchase a test kit through GrowoniX send it off to our partner lab.
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