Filters to Follow
Aer-Max Aeration Systems


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All filters come with a Fleck SXT control valve, offering ease and flexibility in programming as compared with a standard timer valve.

All units in this series come standard with a 1" or 3/4" stainless steel bypass valve (your choice). This makes installation and service a snap.

Aer-Max, the best of closed-tank aeration treatments, does not “remove” contaminants from water but rather prepares them for easy removal by a filter. The filters on this page can be used as free-standing units, but they are especially effective for the reduction of iron, manganese, and hydrogen sulfide in the air-rich environment provided by pre-treatment with Aer-Max.

These tank-style backwashing filters are in residential sizes, and residential wells will usually supply enough water for backwashing them. Having sufficient well output to backwash the filter is essential. Iron/manganese filters will eventually fail without a strong, periodic backwash to keep them clean, so be sure you have enough water. If in doubt about your well's output, please do this test to confirm.

The “maximum service flow” and “backwash required” numbers given in the charts below are round-number estimates that are based on manufacturers' recommendations. Keep in mind, though, that variables like water temperature and general water quality can be significant (greater backwash flow is needed with warm water than with cold, for example).

In the real world, manufacturers' service flow limits are frequently violated, especially for stop and go service runs, but they should be taken very seriously for extended runs, as with irrigation. Be aware that the service flow limitation does not mean that water will not go through the filter faster; it just means that you'll get a better result and longer media life if you stay within the recommended service flow limit.

Because we use the advanced Vortech tank for all filters on this page, we've made a 20% reduction in the media manufacturers' backwash requirement. The tank manufacturer suggests a 30% backwash advantage as compared with standard tanks, but we've taken a more conservative 20% off the media manufacturer's recommendation. This reduction is reflected in the charts.

Some of the highlights of filters offered on this page:

  • Vortech advanced mineral tanks for superior filtration and reduced backwash requirements. No gravel underbed is needed.

  • Sturdy Fleck SXT control valve with precise control of backwash time and duration. We program the valve before shipping to meet your water needs, and the settings can easily be changed.

  • Stainless steel bypass in either 3/4" or 1" (your choice).

  • Drain line flow control to match the filter, pre-installed.

  • Drain tubing, except for the two larger sizes of the Filox filters which need larger-sized drains.

  • Media funnel to facilitate installation.

  • Complete instructions and setup sheet that gives all the essentials of your specific filter.

  • 5-year manufacturer warranty on Fleck Valve & 10-year manufacturer warranty on Vortech Tank.

  • Free shipping to lower-48 US addresses.

  • Phone and email support for selection, installation, and upkeep.

Katalox Light Filters

Katalox Light works especially well with aeration and is a good, practical all-around treatment for most iron and odor issues. It has a high iron and hydrogen sulfide capacity and works well at lower pH levels.

Katalox Light is unique in its high service flow potential as compared with its backwash requirement. Its bulk density of only 66 lbs. per cubic foot (just slightly over half as heavy as Filox) makes it practical and manageable for homeowners. Additionally, being made from a natural zeolite material (Zeosorb), Katalox Light removes particulate down to the 3 micron range.

More information about Katalox Light.

Maximum Service Flow: 5 gpm
Backwash Required: 4 gpm

Filter Control

Fleck 5600 SXT

Tank Size

10" X 54"

Media

1.5 Cubic Feet Katalox Light

$889.00
Part # bw021
Price: $889.00
Maximum Service Flow: 7 gpm
Backwash Required: 6 gpm

Filter Control

Fleck 5600 SXT

Tank Size

12" X 52"

Media

2.0 Cubic Feet Katalox Light

$1029.00
Part # bw022
Price: $1029.00
Maximum Service Flow: 8 gpm
Backwash Required: 7 gpm

Filter Control

Fleck 2510 SXT

Tank Size

13" X 54"

Media

2.5 Cubic Feet Katalox Light

$1229.00
Part # bw023
Price: $1229.00

Filox Filters

Filox is the most active of iron filters per size, but it requires a strong, daily backwash. Filox filters fail if not backwashed sufficiently. Filox is highly effective with iron, manganese, and hydrogen sulfide. If kept clean, it has a very long life. Filox is recommended where iron levels are high and backwash water is plentiful.

As the chart below indicates, Filox filters are commonly sized smaller than other iron filters. Beware of over-sizing. Filox is compatible with chlorine and it is very effective with hydrogen sulfide as well as with iron and manganese.

More information about Filox filters.

Maximum Service Flow: 6 gpm
Backwash Required: 7 gpm

Filter Control

Fleck 5600 SXT

Tank Size

9" X 48"

Media

1.0 Cubic Foot Filox

$929.00
Part # bw031
Price: $929.00
Maximum Service Flow: 8.5 gpm
Backwash Required: 9 gpm

Filter Control

Fleck 2510 SXT

Tank Size

10" X 54"

Media

1.5 Cubic Feet Filox

$1289.00
Part # bw032
Price: $1289.00
Maximum Service Flow: 11.5 gpm
Backwash Required: 13 gpm

Filter Control

Fleck 2510 SXT

Tank Size

12" X 52"

Media

2.0 Cubic Feet Filox

$1499.00
Part # bw033
Price: $1499.00

Standard Carbon (GAC) Filters

Carbon is the medium of choice for removing odors. After aeration, standard filter carbon works well at removing up to one or two parts per million iron and considerably greater concentrations of hydrogen sulfide. Carbon's strong point is odor removal, and it greatly improves the taste of water and removes random organic chemicals as well. It is light and easy to backwash.

Standard (bituminous) carbon is usually preferred for odor reduction, but coconut shell carbon is more durable than bituminous and tends to last longer. If you prefer coconut shell carbon, just tell us when you order and we'll substitute without charge.

Maximum Service Flow: 6 gpm
Backwash Required: 5 gpm

Filter Control

Fleck 5600 SXT

Tank Size

10" X 54"

Media

1.5 Cubic Feet Bituminous Coal Activated Carbon

$749.00
Part # bw002
Price: $749.00
Maximum Service Flow: 7 gpm
Backwash Required: 6 gpm

Filter Control

Fleck 5600 SXT

Tank Size

12" X 52"

Media

2.0 Cubic Feet Bituminous Coal Activated Carbon

$849.00
Part # bw003
Price: $849.00
Maximum Service Flow: 8 gpm
Backwash Required: 7 gpm

Filter Control

Fleck 5600 SXT

Tank Size

13" X 54"

Media

2.5 Cubic Feet Bituminous Coal Activated Carbon

$939.00
Part # bw004
Price: $939.00

Catalytic Carbon Filters

Catalytic carbon is carbon that has been especially prepared to treat iron and hydrogen sulfide in well water. It works especially well following aeration. Its main strength is hydrogen sulfide reduction but it also handles two or three parts per million iron well. It has the same density as standard carbon, so it's easy to backwash.

We offer Jacobi Aquasorb coconut-shell catalytic carbon, or you can upgrade to Centaur, the “name brand bituminous carbon. Both Centaur and Jacobi carbons are superb performers after treatment with Aer-Max. Catalytic carbon is by far the best filter medium for high hydrogen sulfide wells.

Maximum Service Flow: 3.75 gpm
Backwash Required: 4 gpm

Filter Control

Fleck 5600 SXT

Tank Size

10" X 54"

Media

1.5 Cubic Feet Jacobi Coconut Shell Catalytic Carbon

$819.00
Part # bw012
Price: $819.00
Maximum Service Flow: 7 gpm
Backwash Required: 6 gpm

Filter Control

Fleck 5600 SXT

Tank Size

12" X 52"

Media

2.0 Cubic Feet Jacobi Coconut Shell Catalytic Carbon

$929.00
Part # bw013
Price: $929.00
Maximum Service Flow: 9 gpm
Backwash Required: 7 gpm

Filter Control

Fleck 5600 SXT

Tank Size

13" X 54"

Media

2.5 Cubic Feet Jacobi Coconut Shell Catalytic Carbon

$1029.00
Part # bw014
Price: $1029.00

Carbon Block Filters

Carbon block filters can be used very effectively after Aer-Max when only hydrogen sulfide is being treated. If the water contains more than a small amount of iron, cartridge-style filters will stop up prematurely. More styles and many cartridge options exist.

Carbon block filters can be installed in parallel if greater service flow and less pressure drop are desired.

Maximum service flow of 3 gpm for 10" housing, 6 gpm for 20" housing.

Includes a 10" housing, mounting bracket kit, wrench and a 5 Micron MatriKX CTO Extruded Carbon Block Cartridge.

$130.00
Part # wh202

Includes a single housing, mounting bracket kit, wrench and a CTO carbon block cartridge.

$178.00
Part # wh102

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