High Flow Rate Whole House Backwash Carbon Filters

Carbon Whole House Backwash Filter 7000-SXT  1.0 CF

Carbon Whole House Backwash Filter 7000-SXT 1.0 CF

Remove Chlorine For the Whole House!

Code: CF001840 List Price: $1,049.00 Your Price: Shipping Weight: 90.00 lbs. Manufacturer: CWS Manufacturer#: 70AFB-10T-CARBO
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Sizing Guide

Model Number of Bathrooms in Home Flow Rate Backwash Flow Rate Dimensions
0.75 CF 1 - 2 5 GPM 5 GPM Diameter: 8" Height: 44"
1.0 CF 1 - 2 5 GPM 5 GPM Diameter: 10" Height: 44"
1.0 CF Short 1 - 2 5 GPM 5 GPM Diameter: 10" Height: 44"
1.5 CF 1 - 2 5 GPM 5 GPM Diameter: 10" Height: 44"
2.0 CF 2 - 3 8 GPM 7 GPM Diameter: 12" Height: 52"
2.5 CF 2 - 4 10 GPM 8 GPM Diameter: 15" Height: 54"
3.0 CF 2 - 5 10 GPM 8 GPM Diameter: 14" Height: 65"
4.0 CF 3 - 5 14 GPM 14 GPM Diameter: 16" Height: 64"


  • All the filter media you need for the system is included.
  • Excellent for use in dechlorinating water and removing many tastes and odors.
  • Removes chloramines with the optional Catalytic Carbon upgrade
  • Much longer life and higher flow rates than carbon filter cartridges.
  • Unlike carbon cartridges which can trap sediment and dirt causing pressure drop these systems automatically backwash out trapped sediment alleviating pressure drop.
  • Filter tank is NSF certified one piece seamless polyester construction for long life.
  • Advanced Fleck 7000 electronic backwash control valve features fully adjustable backwash and rinse cycles and is loaded with features.
  • Reliable electronic control provides quick setup and easy programming.
  • Quick-connect clips allow easy installation and maintenance.
  • Non-corrosive high-tech material construction.
  • High flow bypass valve included.
  • Environmental cover (NEMA-3R rated) protects control from the weather can be installed inside or outside if protected from freezing.
  • Fleck 7000 control provides high flow with very little pressure drop.


  • Fleck 7000 115V control valve
  • 1.5 Cubic Feet of Carbon Filter Media (standard coconut shell or catalytic carbon)
  • Bypass valve
  • Pipe connectors


  • For disinfected water only!
  • Max pressure recommended is 100 psi.
  • Maximum water temperature recommended 100F.

Flow Rates

  • Fleck 7000 control valve provides high flow with very little pressure drop.
  • Recommended flow rate for maximum filtration performance: 7.0 gpm
  • Maximum possible flow rate: 14 gpm
  • Backwash flow rate: 5 gpm


  • Filter tank diameter: 9 inches
  • Filter tank height: 48 inches
  • Height including control valve valve: 55 inches.
Sizing Help Based On # of Bathrooms in Home:
Model Size Number of Bathrooms
Carbon 7000 1.0 CF 1 to 2
Carbon 7000 1.5 CF 1 to 3
Carbon 7000 2.0 CF 2 to 3
Carbon 7000 2.5 CF 2 to 4
Large Capacity: Won't restrict pressure or flow unlike cartridge-type activated carbon filters. .
  carbon cleanwaterstore backwash
Fully Automatic: Sediment and particles are automatically flushed from system, and filter media cleaned! No monthly maintenance.
Large Media Bed Means Long Life: Huge capacity and special high-grade activated carbon means the media lasts from 1 to 4 years depending on usage. Media is easily changed.
Economical Operation: Less expensive to operate than carbon cartridges.
10 year warranty on filter tanks, ( 5 year warranty on stainless steel tanks); 5 year warranty on control valves. Uses Fleck control valves - the industry standard for many years of trouble-free operation!

Additional information: Above items are 115v models. Also available in 24v, and 220v/50hz. For use on disinfected water only. Flow rates shown above are peak flow rates, based on a pressure drop of 25 psi at the peak flow rate. Actual flow rates will vary based on water temperature and pressure. Flow rate recommendations and installation data is provided as a help in sizing; actual applications and installation could vary, no warranty or guarantees are expressed or implied regarding this information. All 3/4" and 1" units come with heavy-duty bypass valve. For other units, a bypass should be installed using ball or gate valves. Always follow all local plumbing and electrical codes when installing, including installing an air-gap on the drain line connection. For more information see the installation manual. Note: Not NSF or California Certified - No Contaminant removal rates are expressed or implied. For aesthetic improvement of your water only.

Frequently Asked Questions

Q. How do the Backwashing Carbon Filters remove chlorine and sediment from water?

A. The Backwashing Carbon Filter is a large filter canister filled with activated carbon media. Activated carbon removes chlorine in a chemical reaction that oxidizes the carbon surface. Chlorine tastes and odors are removed. Sediment down to 30 microns in size is also removed by mechanical filtration.

Q. What maintenance is required with these backwashing filters?

A. Depending on the level of chlorine in the water, the carbon will need to be changed every 2 to 3 years. This is easily done without any special tools and costs between $100 and $300 depending on the size of the carbon filter.

Q. How can I tell when it is time to change the carbon?

A. You can use a simple chlorine test kit to determine when chlorine is leaking through the carbon and change it when the media starts to wear out.

Q. Will the Backwashing Carbon Filter reduce or remove other chemicals?

A. Possibly. If organic compounds or disinfection byproducts are present, they are removed in a process known as "adsorption." However, because municipally treated water meets stringent USEPA guidelines for these disinfection byproducts, the Backwashing Carbon Filter is sold only as a general-purpose de-chlorinator and water polishing system. If you have specific removal requirements, such as MTBE, or TCE or other organic compounds, contact our technical staff for more information. Note these systems are not NSF or certified for sale in California, Wisconsin or other states that require independent NSF or WQA certification. Some of our customers use them for dechlorinating prior to aquariums, and others use them to reduce the chlorine smell and taste of their water.

Q. Will these carbon backwash filters remove chloramines, a disinfection chemical used by some municipal water treatment plants?

A. The standard carbon backwash filters will not remove chloramines. For chloramine removal we recommend the Centaur carbon backwash filter.

Q. Is chlorine harmful or toxic?

A. Chlorine itself is poisonous but not in the levels found in municipally treated water. The huge benefit of chlorination which is the disinfection of our water supplies far outweighs the slight health risks associated with using chlorinated water over a lifetime. Many people prefer to shower in de-chlorinated water, to avoid the taste, odor and irritation that chlorine can cause. Some of our customers report allergic reaction to chlorinated water, or that they have sensitive skin and found dramatic results after putting in a whole house carbon filter.

Q. Will the Backwashing Carbon Filter removes hardness minerals or help cut down on scale build-up?

A. No. The system removes sediment and oxidized iron particles, which may cause some spotting, but the minerals remain the same. If scaling or spotting is a problem, a water softener is required.

Q. Will the Backwashing Carbon Filter make my water taste great for drinking?

A. This depends on the quality of the incoming water and on your own personal taste. Municipally treated water meets stringent USEPA standards for potability. However, many people drink bottled water for aesthetic reasons. Most of our clients drink home-purified water to remove chlorine after-taste and heavy tastes from minerals or salts.

Q. How does the total dissolved solids ("TDS") affect drinkability?

A. If the water has a moderate to higher total dissolved solids content, then merely filtering the water of chlorine could improve taste, but many people will say the water still tastes "heavy" compared to purified water. Taste is very subjective, and the ability to taste varies widely from person to person. The higher the TDS level, particularly when it reaches over 500 ppm (the USEPA recommended aesthetic guideline) the more people will want to purify the water by using reverse-osmosis or distillation.

Q. Will the Backwashing Carbon Filter remove parasites or cysts?

A. No. Giardia and Cryptosporidium cysts can be removed by 1 micron absolute filters: see our line of drinking water filters and our ultraviolet/filter combinations for cyst removal.

Q. Is bacteria a problem with activated carbon systems?

A. Yes and no. We have tested many of our Backwashing Carbon Filters for bacteria counts over the years and have not found higher levels after the systems. Since the system backwashes with chlorinated water, bacteria growth is retarded. For this reason, non-backwashing tank-type carbon filter systems should not be used. However if the chlorine levels are very low in the incoming water, then a UV sterilizer should be used to disinfect the water after the Backwashing Carbon Filter.

Q. Will the Backwashing Carbon Filter remove iron, and can I use it on my well water system?

A. Generally, no. In some cases, we do use Backwashing Carbon Filters if the well water is chlorinated, and sufficient contact time has occurred to oxidize the iron or manganese. Even then, it is usually better to use a greensand or a Birm iron filter to remove the iron, then a backwashing carbon filter to reduce the chlorine in the household water.

Need more information? E-mail us: info@cleanwaterstore.com
  • Clean Water Systems & Stores, Inc., Water Treatment Equipment,Service & Supplies, Santa Cruz, CA