


Replacement BT1 3-Year Water Filter for System 40
- Up to 40,000 litres per filter. Fewer replacements, less hassle.
- Removes chlorine and other impurities for cleaner, better-tasting water.
- Push-fit DIY install in minutes. No plumber needed.
- Manufactured in the UK to high standards, for reliability you can trust.
Order today, dispatched within 1-2 working days. Free UK delivery. Not the right fit? Return it within 30 days.

Product Description
Ensure continuous access to high-quality filtered water with the BT1 Replacement 3-Year Water Filter, designed specifically for the System 40 under-sink filtration kit. This filter offers a generous 40,000-litre capacity, providing clean, chlorine-free water for up to three years, making it a cost-effective and eco-friendly choice for UK households.
Key Features:
- Long Lifespan: Provides up to 40,000 litres of filtered water, reducing the frequency of replacements.
- Chlorine-Free Filtration: Effectively removes chlorine and other impurities, improving taste and safety.
- DIY Installation: Features push-fit connectors for easy installation without the need for professional assistance.
- Eco-Friendly: Reduces plastic waste associated with bottled water, contributing to a more sustainable lifestyle.
- UK-Made Quality: Manufactured in the UK, ensuring high standards and reliability.
What contaminants does the BT1 reduce?
Using premium silver-impregnated coconut shell activated carbon, the filter reduces a wide range of contaminants commonly found in UK mains drinking water, including:
- Chlorine
- Chlorine taste and odour
- Sediment and larger microplastic particles (10 micron)
- Lead
- Pesticides
- Herbicides
- Trihalomethanes (THMs)
- PFOS and selected PFAS compounds
- Volatile organic compounds (VOCs)
- Organic contaminants that affect water quality
- Selected pharmaceutical and hormone residues
The BT1 improves the taste and quality of your drinking water while retaining the beneficial natural minerals found in mains water.
Specifications
- Filtration media: silver-impregnated activated carbon
- Pre-filtration: Vion F 10-micron screen with cyclone separator
- Capacity: 40,000 litres / 3 years
- Flow rate: high-capacity 3/8" pipework for faster flow than standard filters
- Dimensions: 360mm x 120mm
- Installation: DIY push-fit connectors
- Warranty: 3 years on filter media, 12 months on the filter body
Ideal for households seeking a reliable, long-lasting water filtration solution, the BT1 Filter ensures you enjoy clean, great-tasting water straight from your tap.
Further Information

