Disruptor® BIO Untreated Rainwater 20" x 4.5" International Industry Standard Water Filtration Cartridge
The Disruptor® BIO 20" x 4.5" Whole House Water Filtration Replacement Cartridge is an advanced water filtration cartridge designed specifically for Australian homes and properties using untreated rainwater.
Rainwater may appear fresh and clean, but water collected from rooftops and stored in tanks can contain bacteria, viruses, parasites, fine sediment, organic matter and other contaminants introduced by birds, animals and the surrounding environment.
Unlike treated city water, rainwater is generally not disinfected before entering the home.
That's why the Disruptor® BIO combines patented electroadsorption technology with advanced nanofibre filtration and additional BIO filtration media to provide comprehensive contaminant reduction in a single cartridge.
The cartridge is designed to capture microscopic contaminants through a combination of physical filtration and electroadsorption, targeting bacteria, viruses, fine particles, PFAS and selected heavy metals.
With SGS laboratory testing demonstrating exceptional contaminant reduction performance, Disruptor® technology offers advanced protection for households relying on untreated rainwater.
The large 20" x 4.5" cartridge format is designed for compatible whole-house water filtration systems, providing high-capacity filtration without requiring electricity to operate.

What Makes This Product Unique:
- Specifically Designed for Untreated Rainwater: Targets contaminants commonly associated with rainwater collected from rooftops and stored in tanks, including bacteria, viruses, fine sediment and organic matter.
- Patented Disruptor® Filtration Technology: Uses electroadsorption to attract and capture microscopic contaminants, including certain bacteria, viruses and other particles that may be too small for conventional mechanical filtration alone.
- Advanced BIO Filtration Media: Incorporates additional BIO filtration media around the original Disruptor® filtration technology, providing an expanded filtration structure designed to enhance contaminant capture.
- Multi-Stage Filtration in One Cartridge: Combines depth filtration, nanofibre filtration, adsorption and electroadsorption to target a broad range of water contaminants.
- Exceptional Microbiological Reduction: Laboratory testing demonstrates extremely high reduction rates for tested microbiological contaminants, including E. coli and coliphage virus surrogates.
- PFAS and Heavy Metal Reduction: Disruptor® technology has demonstrated high reduction rates for selected PFAS compounds and heavy metals under laboratory testing conditions.
- High-Capacity Whole House Filtration: The 20" x 4.5" cartridge is designed for higher-volume water filtration applications.
- No Electricity Required: The Disruptor® BIO cartridge operates without electrical power or UV light. Additional treatment may be appropriate for some untreated rainwater supplies.
Test Results:
Disruptor® filtration technology has undergone independent laboratory testing by SGS, demonstrating excellent contaminant reduction performance.
The following results have been supplied for the Disruptor® filtration technology:
- E. coli / Total Coliforms: Greater than 99.9999% reported microbiological reduction.
- Coliphage (Bacterial Virus Surrogate): 99.9995% reduction.
- Lead (Pb): Greater than 99.4% reduction at pH 6.5.
- Copper (Cu): Greater than 99.9% reduction.
- PFOS (Perfluorooctane Sulfonic Acid): Greater than 99.0% reduction.
- PFOA (Perfluorooctanoic Acid): Greater than 97.6% reduction.
- Total Chlorine (Including Chloramines): Greater than 95.7% reported reduction.
- Free Chlorine: Greater than 99.5% reduction.
Testing & Certification:
Independently Laboratory Tested
Disruptor® filtration technology has been evaluated using recognised water filtration and microbiological testing methods.
-
NSF/ANSI 42: Testing associated with aesthetic water quality effects, including specified chlorine, taste and odour reduction.
-
GB/T 5750.12-2023: Microbiological testing methods for drinking water.
-
US EPA Method 1602: Testing method for male-specific and somatic coliphages in water.
- SGS Laboratory Testing: Independent laboratory testing provides evidence of the contaminant reduction performance reported for Disruptor® filtration technology.
Designed in Australia using German and Swedish components.

What's in the Box:
-
1 x Disruptor® BIO 20" x 4.5" Replacement Water Filter Cartridge.
Service Life: Up to 300,000 Litres
The Disruptor® BIO 20" x 4.5" Cartridge has a stated service capacity of up to 300,000 litres, depending on incoming water quality, usage and operating conditions.
Its large-capacity design makes it suitable for compatible whole-house filtration systems where substantial volumes of rainwater are used throughout the home.
Actual cartridge life will vary depending on rainwater quality, sediment loading, water consumption and filtration requirements.
For best results, follow the recommended replacement schedule and maintain the complete rainwater collection and filtration system.
Maintenance:
- Cartridge Replacement: Replace the cartridge every 12–18 months or at the rated service capacity, whichever comes first, subject to the manufacturer's instructions and water conditions.
- Easy Replacement: The 20" x 4.5" cartridge is designed for straightforward replacement in compatible whole-house filter housings.
- Pre-Sediment Filtration Recommended: We recommend installing an appropriate sediment filter before the Disruptor® BIO cartridge to help capture larger particles and extend cartridge service life.
- Rainwater Tank Maintenance: Keep your roof catchment, gutters, tank screens and storage system clean to minimise contamination entering your filtration system.
- Monitor Water Flow: A noticeable reduction in water pressure or flow may indicate sediment accumulation or cartridge blockage.
Cartridge Replacement:
Replace your Disruptor® BIO cartridge every 300,000 litres or 12–18 months, whichever comes first, unless the manufacturer specifies a shorter interval for your conditions.
Regular replacement helps maintain filtration performance and reduces the risk of operating a cartridge beyond its recommended service life.
- Water Quality: Monitor changes in taste, colour and odour. Remember that harmful microorganisms may be present even when water looks and tastes normal.
- Water Pressure: A reduction in flow may indicate cartridge blockage.
- Replacement Reminder: Our Automatic Cartridge Replacement Service can help you keep your filtration maintenance on schedule.
Why Choose This Product?
- Designed for Untreated Rainwater: A filtration solution developed for homes relying on collected and stored rainwater.
- Advanced Disruptor® Technology: Combines electroadsorption, nanofibre filtration and additional BIO media in a single cartridge.
- Microbiological Contaminant Reduction: Laboratory testing demonstrates high reduction rates for tested bacteria and virus surrogates.
- Broad Contaminant Reduction: Targets selected PFAS compounds, heavy metals, chlorine-related contaminants and fine particles.
- High-Capacity Filtration: The 20" x 4.5" cartridge is designed for compatible whole-house filtration systems.
- No Electricity Required: Operates through water flow and specialised filtration media without requiring an electrical connection.
- Independent Laboratory Testing: Supported by SGS testing of Disruptor® filtration technology.
- Trusted Filtration Experience: My Water Filter has supplied and supported Disruptor® filtration technology for many years, helping Australian households improve their water filtration.
Automatic Cartridge Replacement Service
When you purchase a water filtration product from My Water Filter, we want to help you enjoy reliable filtration and convenient ongoing maintenance.
That's why we offer our Automatic Cartridge Replacement Service.
-
Convenient Replacement: Receive replacement cartridges according to your selected schedule.
-
Less to Remember: Reduce the hassle of keeping track of cartridge replacement dates.
-
Ongoing Support: Our team is available to help with cartridge selection and maintenance questions.
The My Water Filter Difference
At My Water Filter, we believe Australian households deserve quality filtration products, reliable information and knowledgeable support.
Our team has years of experience helping customers choose filtration systems suited to their individual water sources.
Whether you're filtering treated city water or untreated rainwater, we're here to help you make informed decisions about your home's water filtration.
Transform Lives Through Clean Water Access
At My Water Filter, our commitment extends beyond our customers and their families.
With every purchase, we contribute 30 days of access to clean drinking water for people in need.
Through our partnership with Buy1GIVE1, your purchase helps support communities that need access to safe drinking water.
Thank you for helping us make a difference, one purchase at a time.

Why Buy from My Water Filter
At My Water Filter, we offer products that combine quality, reliability, and performance to give you peace of mind knowing you're using a high-performance product that provides clean, safe, and healthy water for your family.
We Give Together
When you buy a water filter or home water solution from My Water Filter, at no extra cost to you, we give life-changing drinking water to people in need on your behalf.
Bit by bit, we make a difference together. Check out our giving page here.
Free Delivery Australia Wide
FREE Insurance
Our 10 Guarantees
30-Day Money-Back Guarantee
| Product ID | 3270 |
| Model | Disruptor® 20" x 4.5" Replacement Filter |
| Filter Size | 20" x 4.5" |
| Filtration Stages | 4 |
| Maximum Flow Rate | 4 LPM |
| Maximum Pressure | 80 PSI |
| Working Pressure | 70 PSI |
| Operating Temperature | 2°C-38°C |
| Filter Media | Coconut shell carbon, Disruptor® patented filtration technology |
| Cartridge Service Life | 300,000 litres or 12-18 months (depending on usage) |
| Filtration Technology | Mechanical, Sorption, and Electroadsorption |
| Certified Contaminants Removed | PFAS, Chlorine, Heavy Metals, Bacteria, Viruses, and more |
| Micron Rating | 2 Micron |
Disruptor® BIO Untreated Rainwater 20" x 4.5" International Industry Standard Water Filtration Cartridge
The Disruptor® BIO 20" x 4.5" Whole House Water Filtration Replacement Cartridge is an advanced water filtration cartridge designed specifically for Australian homes and properties using untreated rainwater.
Rainwater may appear fresh and clean, but water collected from rooftops and stored in tanks can contain bacteria, viruses, parasites, fine sediment, organic matter and other contaminants introduced by birds, animals and the surrounding environment.
Unlike treated city water, rainwater is generally not disinfected before entering the home.
That's why the Disruptor® BIO combines patented electroadsorption technology with advanced nanofibre filtration and additional BIO filtration media to provide comprehensive contaminant reduction in a single cartridge.
The cartridge is designed to capture microscopic contaminants through a combination of physical filtration and electroadsorption, targeting bacteria, viruses, fine particles, PFAS and selected heavy metals.
With SGS laboratory testing demonstrating exceptional contaminant reduction performance, Disruptor® technology offers advanced protection for households relying on untreated rainwater.
The large 20" x 4.5" cartridge format is designed for compatible whole-house water filtration systems, providing high-capacity filtration without requiring electricity to operate.

What Makes This Product Unique:
- Specifically Designed for Untreated Rainwater: Targets contaminants commonly associated with rainwater collected from rooftops and stored in tanks, including bacteria, viruses, fine sediment and organic matter.
- Patented Disruptor® Filtration Technology: Uses electroadsorption to attract and capture microscopic contaminants, including certain bacteria, viruses and other particles that may be too small for conventional mechanical filtration alone.
- Advanced BIO Filtration Media: Incorporates additional BIO filtration media around the original Disruptor® filtration technology, providing an expanded filtration structure designed to enhance contaminant capture.
- Multi-Stage Filtration in One Cartridge: Combines depth filtration, nanofibre filtration, adsorption and electroadsorption to target a broad range of water contaminants.
- Exceptional Microbiological Reduction: Laboratory testing demonstrates extremely high reduction rates for tested microbiological contaminants, including E. coli and coliphage virus surrogates.
- PFAS and Heavy Metal Reduction: Disruptor® technology has demonstrated high reduction rates for selected PFAS compounds and heavy metals under laboratory testing conditions.
- High-Capacity Whole House Filtration: The 20" x 4.5" cartridge is designed for higher-volume water filtration applications.
- No Electricity Required: The Disruptor® BIO cartridge operates without electrical power or UV light. Additional treatment may be appropriate for some untreated rainwater supplies.
Test Results:
Disruptor® filtration technology has undergone independent laboratory testing by SGS, demonstrating excellent contaminant reduction performance.
The following results have been supplied for the Disruptor® filtration technology:
- E. coli / Total Coliforms: Greater than 99.9999% reported microbiological reduction.
- Coliphage (Bacterial Virus Surrogate): 99.9995% reduction.
- Lead (Pb): Greater than 99.4% reduction at pH 6.5.
- Copper (Cu): Greater than 99.9% reduction.
- PFOS (Perfluorooctane Sulfonic Acid): Greater than 99.0% reduction.
- PFOA (Perfluorooctanoic Acid): Greater than 97.6% reduction.
- Total Chlorine (Including Chloramines): Greater than 95.7% reported reduction.
- Free Chlorine: Greater than 99.5% reduction.
Testing & Certification:
Independently Laboratory Tested
Disruptor® filtration technology has been evaluated using recognised water filtration and microbiological testing methods.
-
NSF/ANSI 42: Testing associated with aesthetic water quality effects, including specified chlorine, taste and odour reduction.
-
GB/T 5750.12-2023: Microbiological testing methods for drinking water.
-
US EPA Method 1602: Testing method for male-specific and somatic coliphages in water.
- SGS Laboratory Testing: Independent laboratory testing provides evidence of the contaminant reduction performance reported for Disruptor® filtration technology.
Designed in Australia using German and Swedish components.

What's in the Box:
-
1 x Disruptor® BIO 20" x 4.5" Replacement Water Filter Cartridge.
Service Life: Up to 300,000 Litres
The Disruptor® BIO 20" x 4.5" Cartridge has a stated service capacity of up to 300,000 litres, depending on incoming water quality, usage and operating conditions.
Its large-capacity design makes it suitable for compatible whole-house filtration systems where substantial volumes of rainwater are used throughout the home.
Actual cartridge life will vary depending on rainwater quality, sediment loading, water consumption and filtration requirements.
For best results, follow the recommended replacement schedule and maintain the complete rainwater collection and filtration system.
Maintenance:
- Cartridge Replacement: Replace the cartridge every 12–18 months or at the rated service capacity, whichever comes first, subject to the manufacturer's instructions and water conditions.
- Easy Replacement: The 20" x 4.5" cartridge is designed for straightforward replacement in compatible whole-house filter housings.
- Pre-Sediment Filtration Recommended: We recommend installing an appropriate sediment filter before the Disruptor® BIO cartridge to help capture larger particles and extend cartridge service life.
- Rainwater Tank Maintenance: Keep your roof catchment, gutters, tank screens and storage system clean to minimise contamination entering your filtration system.
- Monitor Water Flow: A noticeable reduction in water pressure or flow may indicate sediment accumulation or cartridge blockage.
Cartridge Replacement:
Replace your Disruptor® BIO cartridge every 300,000 litres or 12–18 months, whichever comes first, unless the manufacturer specifies a shorter interval for your conditions.
Regular replacement helps maintain filtration performance and reduces the risk of operating a cartridge beyond its recommended service life.
- Water Quality: Monitor changes in taste, colour and odour. Remember that harmful microorganisms may be present even when water looks and tastes normal.
- Water Pressure: A reduction in flow may indicate cartridge blockage.
- Replacement Reminder: Our Automatic Cartridge Replacement Service can help you keep your filtration maintenance on schedule.
Why Choose This Product?
- Designed for Untreated Rainwater: A filtration solution developed for homes relying on collected and stored rainwater.
- Advanced Disruptor® Technology: Combines electroadsorption, nanofibre filtration and additional BIO media in a single cartridge.
- Microbiological Contaminant Reduction: Laboratory testing demonstrates high reduction rates for tested bacteria and virus surrogates.
- Broad Contaminant Reduction: Targets selected PFAS compounds, heavy metals, chlorine-related contaminants and fine particles.
- High-Capacity Filtration: The 20" x 4.5" cartridge is designed for compatible whole-house filtration systems.
- No Electricity Required: Operates through water flow and specialised filtration media without requiring an electrical connection.
- Independent Laboratory Testing: Supported by SGS testing of Disruptor® filtration technology.
- Trusted Filtration Experience: My Water Filter has supplied and supported Disruptor® filtration technology for many years, helping Australian households improve their water filtration.
Automatic Cartridge Replacement Service
When you purchase a water filtration product from My Water Filter, we want to help you enjoy reliable filtration and convenient ongoing maintenance.
That's why we offer our Automatic Cartridge Replacement Service.
-
Convenient Replacement: Receive replacement cartridges according to your selected schedule.
-
Less to Remember: Reduce the hassle of keeping track of cartridge replacement dates.
-
Ongoing Support: Our team is available to help with cartridge selection and maintenance questions.
The My Water Filter Difference
At My Water Filter, we believe Australian households deserve quality filtration products, reliable information and knowledgeable support.
Our team has years of experience helping customers choose filtration systems suited to their individual water sources.
Whether you're filtering treated city water or untreated rainwater, we're here to help you make informed decisions about your home's water filtration.
Transform Lives Through Clean Water Access
At My Water Filter, our commitment extends beyond our customers and their families.
With every purchase, we contribute 30 days of access to clean drinking water for people in need.
Through our partnership with Buy1GIVE1, your purchase helps support communities that need access to safe drinking water.
Thank you for helping us make a difference, one purchase at a time.

Why Buy from My Water Filter
At My Water Filter, we offer products that combine quality, reliability, and performance to give you peace of mind knowing you're using a high-performance product that provides clean, safe, and healthy water for your family.
We Give Together
When you buy a water filter or home water solution from My Water Filter, at no extra cost to you, we give life-changing drinking water to people in need on your behalf.
Bit by bit, we make a difference together. Check out our giving page here.
Free Delivery Australia Wide
FREE Insurance
Our 10 Guarantees
30-Day Money-Back Guarantee
| Product ID | 3270 |
| Model | Disruptor® 20" x 4.5" Replacement Filter |
| Filter Size | 20" x 4.5" |
| Filtration Stages | 4 |
| Maximum Flow Rate | 4 LPM |
| Maximum Pressure | 80 PSI |
| Working Pressure | 70 PSI |
| Operating Temperature | 2°C-38°C |
| Filter Media | Coconut shell carbon, Disruptor® patented filtration technology |
| Cartridge Service Life | 300,000 litres or 12-18 months (depending on usage) |
| Filtration Technology | Mechanical, Sorption, and Electroadsorption |
| Certified Contaminants Removed | PFAS, Chlorine, Heavy Metals, Bacteria, Viruses, and more |
| Micron Rating | 2 Micron |








