Brita Purity C500 Quell ST Replacement Filter Cartridge

The Brita Purity C500 Quell ST is a genuine replacement filter cartridge designed for use with the Purity C filter head system. It filters the incoming mains water supply by reducing calcium, magnesium, lead, copper, and other impurities that affect water taste and quality — directly influencing the flavour of hot beverages, soups, stocks, and anything else prepared with that water.

In a busy commercial kitchen, water quality has a measurable effect on two things: the food and drink you produce, and the longevity of the equipment that processes it. Scale accumulation inside boilers, steam ovens, coffee machines, and combi units is a well-documented cause of reduced efficiency, increased maintenance costs, and premature equipment failure. Regular cartridge replacement keeps filtration effective and helps protect that investment.

Practical benefits of keeping the cartridge on a proper replacement schedule include:

• Consistent water quality for hot beverages and food preparation
• Reduced limescale build-up inside boilers and steam-generating equipment
• Lower risk of heat exchanger inefficiency and associated energy waste
• Protection for valves, seals, and internal components in water-fed appliances
• Simpler descaling maintenance and reduced chemical cleaning frequency

This cartridge fits the Purity C filter head (sold separately). It is worth confirming your existing head model before ordering, as the Purity C range includes several head variants. Cartridge capacity and replacement intervals will depend on local water hardness and daily throughput — sites in hard water areas or with high-volume equipment will typically need more frequent changes than the general guideline suggests.

The C500 capacity suits moderate- to higher-volume sites. For lighter-use operations, a lower-capacity cartridge in the same range may be more cost-effective, while very high-throughput kitchens running multiple water-fed appliances simultaneously may benefit from a higher-capacity option.

If you are unsure which cartridge capacity is right for your water hardness level and equipment load, we are happy to help you work that out before you order.