Catalytic carbon filtration for chloramine-treated water
High-capacity chloramine, chlorine, taste and odour reduction
The Osmio 4.5 × 10 inch Chloramine Reduction Carbon Block is a specialist 0.5 micron cartridge made from high-performance coconut-shell catalytic carbon. It is designed for municipal water supplies where chloramine reduction requires more reactive media than a conventional carbon block.
Highly reactive catalytic carbon
Designed to reduce persistent disinfectant chemicals
Chloramine is formed by combining chlorine with ammonia and can be more difficult to reduce than free chlorine. This cartridge uses 100% coconut-shell catalytic carbon with a highly reactive surface to improve chloramine reduction while also addressing chlorine, sediment and unwanted taste and odour.
- Specialist chloramine reduction media
- High-capacity chlorine taste and odour reduction
- 0.5 micron nominal particulate rating
- 100% high-performance coconut-shell carbon
- Designed for compatible 4.5 × 10 inch filter housings
0.5 micron
Fine nominal particulate filtration.
Chloramine capacity
More than 4,000 US gallons at 1.5 GPM.
Chlorine capacity
More than 60,000 US gallons at 3 GPM.
Catalytic carbon
Highly reactive coconut-shell media.
Do not confuse the two ratings
Separate capacities for chloramine and chlorine
The much larger chlorine capacity must not be presented as the cartridge's chloramine capacity. Each figure applies to a different contaminant and test flow.
Chloramine reduction
More than 15,100 litres at 1.5 GPM / 5.7 LPM.
Chlorine taste and odour
More than 227,000 litres at 3 GPM / 11.4 LPM.
Capacity is not a guaranteed service interval: Actual cartridge life varies with incoming water quality, contaminant loading, flow rate and total water use.
Four practical functions
What the cartridge is designed to address
Chloramine
Catalytic carbon provides the reactive surface needed to reduce chloramine more effectively than conventional carbon media.
Chlorine
High-capacity chlorine reduction helps improve the quality of treated mains water.
Taste and odour
Activated carbon adsorbs compounds associated with unwanted tastes and smells.
Fine sediment
The 0.5 micron nominal rating also captures fine suspended particles under the stated test method.
Compatible replacement cartridge
Used within the Osmio PROMAX-III Ultimate system
This 4.5 × 10 inch catalytic carbon block is used as the chloramine and chlorine reduction stage within the Osmio PROMAX-III Ultimate Whole House Water Filter. Confirm the model and cartridge size before ordering for any other housing.
Technical information
Osmio 4.5 × 10 inch chloramine carbon block specification
| Manufacturer | Osmio |
|---|---|
| Product code | CRC 4510-P5 |
| Cartridge type | Catalytic coconut-shell carbon block |
| Nominal size | 4.5 × 10 inch |
| Nominal micron rating | 0.5 micron |
| Chloramine reduction capacity | More than 4,000 US gallons at 1.5 GPM |
| Chlorine taste and odour capacity | More than 60,000 US gallons at 3 GPM |
| Initial pressure differential | Approximately 6 psi at 3 GPM |
| Filter media | 100% high-performance coconut-shell carbon |
| Primary functions | Chloramine, chlorine, sediment, taste and odour reduction |
| Known Regal Flow system compatibility | Osmio PROMAX-III Ultimate Whole House Water Filter |
Manufacturer technical information
View the Osmio carbon-block datasheet
Review the published cartridge sizes, micron ratings, contaminant capacities, test flows and pressure-drop information before specifying the filter.
Materials and testing
Published quality and safety information
Materials and performance
Osmio states NSF/ANSI Standard 42 certification information for this catalytic carbon range.
Standard 42 reference
The published product information also references WQA certification to NSF/ANSI Standard 42.
Performance data
Performance claims are based on independent laboratory results and manufacturer test data under specified conditions.
Important: Certification scope and contaminant performance are not interchangeable claims. Consult the manufacturer datasheet for the precise published wording.
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Helpful answers
Frequently asked questions
What is the difference between chlorine and chloramine?
Chloramine combines chlorine with ammonia and remains stable in water for longer. It generally requires catalytic or specialist carbon media with sufficient contact time rather than relying on a standard carbon cartridge.
What is the chloramine capacity?
The published chloramine reduction capacity is more than 4,000 US gallons at 1.5 GPM, equivalent to approximately 15,100 litres at 5.7 LPM.
Why is the chlorine capacity much higher?
Free chlorine is generally easier for activated carbon to reduce. The stated chlorine taste and odour capacity is more than 60,000 US gallons at 3 GPM, but this figure must not be used as the chloramine capacity.
How often should the cartridge be replaced?
No single calendar interval applies to every installation. Replace it when the relevant capacity is reached, when system maintenance specifies a change, or sooner if flow or water quality deteriorates.
Does this filter reduce fluoride?
This cartridge may have some incidental fluoride reduction, but Osmio does not recommend it as a standalone fluoride filter. Choose a cartridge specifically rated for fluoride reduction if that is the primary requirement.
Will it fit every 4.5 × 10 inch housing?
Do not assume compatibility from the nominal dimensions alone. Check the housing model, cartridge clearance, seals and required flow before ordering.
Can it be used with microbiologically unsafe water?
Not without adequate disinfection. Carbon filtration does not make microbiologically unsafe or unknown-quality water safe on its own.
Friendly expert support
Not sure whether this is the correct Osmio cartridge?
Send us the system model or a clear photograph of the existing filter label. We will help confirm the cartridge size and compatibility before you order.