✓ Perfect replacement for the Doulton OBE Ultracarb or Supercarb and fits all standard 10″ small diameter housings.

✓ Made in the UK by world-leading manufacturer

✓ >99.9999% removal of bacteria and cysts

✓ 85% fluoride reduction 85% influent level 1100 μg/L at flow rate 2.5 LPM

The Coldstream CF521W is a high-performing ceramic cartridge that is capable of fluoride removal as well as chlorine, heavy metals and bacteria, and cysts, making it the most powerful ceramic cartridge currently on the market. This filter can be a direct replacement for any 2.5 x 10 Inch cartridge and comes with rubber washer rings to ensure it will fit any housing.

Operating performance

The Coldstream MAX ceramic water purifier provides the ultimate protection against water pollutants and waterborne viruses  – it is made up of three key components.

• The carbon inner core protects against chemical contamination, including pesticides and herbicides.
• Surrounding this is our unique ceramic outer layer giving maximum anti-bacterial protection and the removal of particles and microplastics.
• Ceramic outer layer with antimicrobial properties, which helps to eradicate waterborne viruses, providing maximum protection

Working parameters
Working temperature range:  5 – 30C
Working ph range 5.5 – 9.5
Suitable for gravity filters: No
Contaminant reduction: Virus, Bacteria, Pesticides, Sediment, Heavy Metals, Chemicals, Pharmaceuticals, Pesticides, Herbicides, Fluoride
Capacity Before replacement to guarantee performance Litres 3000 L
Working Pressure (for pressure use) Minimum 10 Psi Maximum 125 Psi

Disposing of used filters

The filter would need to be smashed the ceramic and carbon inside should go to rubbish and the plastic ends can be recycled as plastic. Some people use the media and ceramic to compost but I don’t because they can have pharmaceutical and hormone traces and I grow food so I would not want that. For the media, it would be best to send that stuff to the landfill.