Stock Take in Progress: 25 February – 2 March 2026.
We remain open and will continue processing orders as normal. Please note that selected items may experience slight dispatch delays during this period. Thank you for your understanding and continued support.


The 20-Inch Big Blue Carbon Block Filter Cartridge – Premium Range (800mg/g) is a high-performance water filtration solution designed for whole-house systems, commercial setups, and industrial applications. Manufactured using premium-grade activated carbon, this cartridge provides exceptional chlorine, taste, and odour removal, with a high adsorption capacity rated at 800mg/g iodine number.
Engineered for high flow rates and extended life span, this carbon block cartridge ensures efficient removal of volatile organic compounds (VOCs), pesticides, disinfection by-products, and chemical pollutants. It also provides excellent sediment holding capacity for finer particulate filtration.
Premium Carbon Block Media – Manufactured with fine coconut shell-based activated carbon for superior adsorption.
High Iodine Rating: 800mg/g – Delivers excellent chlorine, taste, and chemical reduction performance.
Whole-House Compatibility – Fits all standard 20-inch Big Blue filter housings.
Improves Water Quality – Enhances taste, smell, and clarity of drinking water.
Dense Filtration Structure – Removes both particulates and dissolved contaminants in one step.
Long-Lasting Performance – Extended lifespan compared to standard carbon block cartridges.
Filter Type: Carbon Block
Size: 20" x 4.5" (Big Blue Standard)
Carbon Type: Coconut shell activated carbon
Iodine Number: 800mg/g
Micron Rating: 5 micron (nominal)
Chlorine Reduction: ≥ 95%
Recommended Flow Rate: 15–20 litres/min
Max Pressure: 8 bar
Max Temperature: 52°C
Service Life: ±6 months (depending on water quality)
Whole-house water filtration systems
Rainwater harvesting systems
Municipal water treatment
Pre-filtration for reverse osmosis units
Commercial kitchens and beverage processing
Offices, lodges, farms and rural buildings
1 x 20-Inch Big Blue Carbon Block Filter Cartridge – Premium Range (800mg/g)
For best performance, use after a sediment pre-filter to extend cartridge life.
This filter is not intended to remove pathogens. Combine with UV or Quantum Disinfection™ for microbiological safety.
Always replace cartridge every 6 months or as pressure drops significantly.
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