Big Blue Iron/Manganese Water Filter - size 20"x4.5"
Big Blue Iron/Manganese Water Filter - size 20'x4.5'

Big Blue Iron/Manganese Water Filter - size 20"x4.5"

CAD $195.00
CAD $165.00
Part Number: 104121
In Stock
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Quantity Pricing
  • 3 - 6
  • 156.75
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  • 148.50
  • 24
  • 132.00

Detailed Description:

Iron manganese media, used for removing soluble iron (Fe) and/or manganese (Mg) as well as hydrogen sulfide (H2S) from well water supplies, is a purple-black filter media processed from ceramic zeolite granules. Iron manganese media can be used in a completely closed pressure system with no aeration or re-pumping, or in an open gravity filter system.

The most common methods of operation are continuous regeneration, which is recommended for predominantly iron water.

Note: Customers are advised to use a "sediment filter" as a pre-filter and a "CTO filter" as a post-filter to extend the life of the "Iron Manganese" replacement cartridge as the Iron-Manganese filter woven gets clogged fast if not protected by a sediment filter first. Also, customers might experience a slight pressure drop in water output (the minimum inlet pressure for the iron-manganese system is 60 psi). Rest assured this is normal and a part of the functioning of the media cartridge.

This Filter can be refilled with the appropriate Filter Media. We sell Iron/Manganese Water Filter Media (104122) HERE.

Physical Characteristics

  • Apparent Density: 1.0 g/ml
  • Shipping Weight: 17 Lbs
  • Specific Gravity: 2.5~2.6
  • Screen Grading (dry): 16~30 mesh
  • Effective Size: 0.65 ± 0.05mm
  • Uniformity Coefficient: Less than 1.5
  • pH Range: 6.2 ~ 8.5
  • Maximum Temperature: 25 C°
  • Minimum Recommended incoming pressure: 60 PSI To avoid a drop in water pressure at home, it's important to maintain a minimum operating pressure of 60 PSI.
  • Maximum Pressure Drop: 0.85 kg/cm2

Important: Flush System after changing the Iron/Manganese filter to Remove the Iron Fines.

Please follow the following steps to prevent clogging and potentially damaging the filter.

Step 1: After installing filters in the filter housings make sure that the outflow valve on the system is CLOSED.

Step 2: Open the main inflowing valve HALFWAY to limit the incoming water while holding down one of the pressure-release valves on the system to purge any air.

Step 3: OPEN the outflowing valve as well as the faucet nearest the system for 5-10 minutes, or until the water runs clear, to flush any fines from the filters.

Step 4: You're done! Turn off the faucet, open the main inflowing valve all the way, and your system is ready to go.

Caution:To prevent and avoid rapid buildups in the pre-woven filter and ensure that the Iron filter has a longer lifespan from getting clogged quickly and causing a drop in pressure throughout your entire home, it's important to always install this filter after the sediment filter.

Additionally, it's recommended to follow this filter with either a CTO carbon filter to effectively combat any unpleasant odors that may arise once it starts collecting iron or hydrogen sulfide. Without a carbon filter after the iron filter, there is no effective way to address the issue of foul odors.

Methods of Operation

Continuous Regeneration: Continuous regeneration operation is recommended for well water where iron removal is the main objective with or without the presence of manganese. Briefly, it involves the feeding of a predetermined amount of potassium permanganate ( KMnO4 ), usually in combination with chlorine ( Cl2 ), directly to the raw water prior to the unit containing Iron manganese continuous regeneration. The chlorine should be fed upstream of the KMnO4 with a contact time of 10 ~ 20 seconds if possible. Sufficient chlorine should be fed to produce the desired residual in the filter effluent. Enough KMnO4 should be fed to produce a “just pink” color in the filter inlet. This will maintain the Iron manganese n media in a continuously regenerated condition.

The quantity of Cl2 and KMnO4 required can be estimated as follows:

mg/L Cl2 = mg/L Fe
mg/L KMnO4 = (0.2 x mg/L Fe)(2 x mg/L Mn)

Without Cl2 the KMnO4 demand can be estimated as follows:

mg/L KMnO4 = (1 x mg/L Fe)(2 x mg/L Mn)

Suggested Operating Conditions

  • Backwash: Sufficient rate using treated water to produce approximately 30% bed expansion.
  • Rinse: At normal service flow rate for 5 minutes or until the effluent is acceptable.
  • Capacity: 350~500 g/m2 of bed area based on potassium permanganate demand. For iron/manganese continuous regeneration, a 70cm minimum bed of specially sized iron/manganese media is required. Pressure drop should not exceed 0.70 ~ 0.85 kg/cm2.
  • Flow rate: Normal flow rates with continuous regeneration operation is approximately 5 ~ 12 m/hr. Higher concentrations of iron and manganese usually require lower flow rates for equivalent run lengths. Rates in excess of 12 m/hr can usually be tolerated but a pilot unit should be operated to determine the effluent quality and run length.

The run length between backwashes can be estimated as follows:

Example: What is run-length of water containing 1.7 mg/L iron and 0.3 mg/L manganese at a 10m/hr operating rate?

=(1 x 1.7) + (2 x 0.3)
= 2.3 mg/L
At 500 g/m2 loading ÷ 2.3 mg/L = 217 m
At 10 m/hr service rate, 217/10 = 21.7 hr

Therefore the backwash frequency is approximately every 20 ~ 24 hours of operation.

General Notes

Raw water having a pH of 6.2 or higher can be passed through iron/manganese media without pH correction; water having a pH lower than 6.2 should be pH corrected to 6.2 ~ 6.5 before passing through the iron/manganese media. If a pH higher than 6.5 is desired in the water system, the additional alkali should be added after the filters due to the adverse reaction information of a colloid that sometimes occurs with the iron and alkali with a pH over 6.5.

KMnO4 solution strength: With continuous regeneration operation, the KMnO4 can be any concentration up to 30 g/L.

KMnO4 Solubility of KMnO4 in water:

Temp. C°g/100 ml

Estimated Life of WH5 Iron Filter Cartridge:

Iron Equivalent Level in WaterTotal Gallons of Water Used250 GPD (946 LPD)(four people)125 GPD (473 LPD)(two people)75 GPD (284 LPD)(one person)
0.5 ppm160,000 gal (605,670 L)640 days 1280 days+2,000 days
1 ppm80,000 gal (302,830 L) 320 days640 days1280 days
2 ppm40,000 gal (151,420 L)160 days320 days 640 days
3 ppm 26,000 gal (98,420 L)104 days208 days416 days
4 ppm20,000 gal (75,710 L)80 days160 days320 days
5 ppm 16,000 gal(60,570 L)64 days128 days256 days

Material Safety Data Sheet

Hazards Identification:

  • Inhalation: Excessive concentrations of nuisance dust may cause nuisance conditions such as coughing, sneezing, and nasal irritation.
  • Ingestion: Non-toxic. Large oral doses may cause irritation to the gastrointestinal tract.
  • Skin Contact: Not expected to be a health hazard from skin exposure. May cause mild irritation and redness.
  • Eye Contact: No information was found, but presumed to cause mechanical irritation.
  • Aggravation of Pre-existing Conditions: No information found.

First Aid Measures

  • Inhalation: Remove to fresh air. Get medical attention for any breathing difficulty.
  • Ingestion: Not expected to require first aid measures. If large amounts were swallowed, give water to drink and get medical advice.
  • Skin Contact: Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention if irritation develops.
  • Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids occasionally. Get medical attention if irritation persists.

Fire Fighting Measure

  • Fire: Not considered to be a fire hazard.
  • Explosion: Not considered to be an explosion hazard.
  • Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire.
  • Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with a full face piece operated in the pressure demand or other positive pressure mode.

Accidental Release Measure

Ventilate the area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.

Handling and Storage

Keep in a tightly closed container, and stored in a cool, dry, ventilated area. Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

Exposure Controls and Personal Protection

Personal Respirators(NIOSH Approved): If the exposure limit is exceeded and engineering controls are not feasible, a half-facepiece particulate respirator (NIOSH type N95 or better


There are two main types of iron in water:

  • Ferric Iron, is insoluble and visible to the naked eye. Also known as “Red Water Iron”.
  • Ferrous / Soluble Iron dissolves in water and is invisible. Also known as “Clear Water Iron”.

If you are dealing with Ferric and Ferrous Iron, an Iron Manganese Filter/System is HIGHLY recommended. It will oxidize dissolved iron into particulate, ready for removal from your water.

Be aware that Organic Material, Trapped Air, Upstream Pollution, or a new water source can also discolor your Water, so in the case that an Iron Filter does not immediately solve your water issues, please be sure to address those potential sources as well.


Installing the system immediately with all 3 Filters loaded in will cause the 3rd Stage filter to be covered with iron powder, also known as “red water iron” so when handling Iron Manganese systems, pre-preparation for the system is very important.

First-Time Installation for Iron Manganese Systems

For the first time using the filter, load the sediment filter into the 1st stage housing (right), and load the iron-manganese filter in the 2nd stage housing (middle). Leave the CTO Filter out and leave the 3rd stage housing (left) empty.

Connect the system to your house and open the mainline for 10 MINUTES, opening the nearest faucet to flush out the residue of red finery/powder.

Once the water coming out of the faucet is clear without a reddish color, your System is ready for the CTO Filter to be installed into the 3rd Stage Filter Housing. Stop the mainline, install the CTO Filter, and open the mainline again for 5 MINUTES, opening the nearest faucet to flush out the residue of carbon block remaining powder.

Important Flush System after changing Iron/Manganese/GAC Filters to remove Fines/Powder.

Important Flush System after changing Iron/Manganese/GAC Filters to remove Fines/Powder.

Step 1: After installing the filters in the filter housings, make sure that the outflow valve on the system is CLOSED.

Step 2: Open the main in-flowing valve HALFWAY to limit the incoming water while holding down one of the pressure-release valves on the system to purge any air.

Step 3:OPEN the out-flowing valve as well as the faucet nearest to the system for 5-10 MINUTES, or until the water clears up completely, to flush any fines/powder from the filters, just follow (First-Time Installation for Iron Manganese Systems) above.

Step 4: Turn off the faucet, open the main in-flowing valve all the way, and your system is good to go.

NOTE: Max Water is not responsible for any system/filter damages incurred by not following the above guidelines.


  • The approximate Iron filter for 4 users is 320 days, or 80,000 gallons of use (which is first) if your iron level is 1 PPM, if your iron level is 2 PPM then the filter life will be 40,000 gallons.
  • Maximum Operating Pressure: 90 PSI
  • Operating Temperature Range: 40-100°F (5-40°C)
  • Dimensions: 27.5 height x 8" width x 10" depth
  • Weight: Approx 16 lb.
  • Feed Water pH range: 4.0-10.0
  • Preferable feed water pressure range: 50-70PSI to get the best filtration results keeps it at 60PSI.
  • Maximum Feed Water TDS: 1000 ppm, Iron less than 4 ppm
  • Pressure Drop @10GPM: Less than 1 PSI
  • Estimated Flow Rate:
    • 1-20* GPM for 1" Inlet/Outlet
    • 1-15* GPM for ¾" Inlet/Outlet

Total Dissolved Solids.
* Pressure drop will be determined based on feed water pressure, filter cartridge, fluid viscosity, filter life, and conditions.

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