Premium ceramic gravity candle engineered to reduce PFAS (e.g., PFOA, PFOS), chlorine, sediment, and unwanted taste and odour—no power or plumbing required.

Give your bench-top system a meaningful upgrade. Ultra Sterasyl pairs a fine ceramic shell with advanced carbon/ion-exchange media to target PFAS and other chemical tastes, while the ceramic surface screens out fine particles. The result is clear, fresher-tasting water from a simple gravity setup.

Why you’ll love it

• Designed to reduce PFAS (including PFOA & PFOS)*

• Ceramic micro-filtration helps trap rust, dirt and fine sediment

• Helps reduce chlorine for improved taste and smell

• Gravity-fed—works during outages; no tools or power needed

• Straightforward DIY install; replaces standard Doulton/British Berkefeld candles

• Made by a trusted UK water filtration brand

How it works
Water passes through a micro-porous ceramic shell, then through a high-performance core containing activated carbon and ion-exchange media. This two-stage path targets both particles and dissolved contaminants linked to taste, odour and PFAS.

Use & Care

• Rinse/prime before first use following the manufacturer’s instructions

• Clean the ceramic exterior periodically with a soft brush under running water (no detergents)

• Replace when the flow becomes slow or at the recommended interval (usage and water quality dependent)

What’s in the box

• 1 × Ultra Sterasyl PFAS ceramic filter candle

• Washer/seal and wing nut (where supplied)

Compatibility
Fits compatible British Berkefeld and Doulton gravity systems (and other units that accept standard ceramic candle threads/clearances). If unsure, check thread size and available height in your upper chamber or contact us with your model.

Good to know

• Performance varies with water chemistry, temperature and maintenance.

• Not a desalination or sterilisation device; use with potable water sources unless otherwise directed by the manufacturer.

• Avoid unverified reduction percentages; refer to official Doulton/British Berkefeld performance data for certified claims.

FAQs

Does this candle remove PFAS completely?
It’s designed to reduce PFAS such as PFOA and PFOS. Actual reduction depends on your incoming water, flow rate/contact time and maintenance.

How often should I replace it?
Many households replace gravity candles every 6–12 months, or sooner if flow slows noticeably. Lifespan depends on usage and water quality.

Can I wash the candle to restore flow?
Yes—gently scrub the ceramic exterior under running water. Do not use soap or boil the candle.

Will it fit my non-Doulton gravity unit?
If your system uses standard ceramic candle threads and has adequate clearance, it may be compatible. Check your model specs or ask us.