Needed replacement and saw Asda one was £15 now and found this.
The BRITA MAXTRA cartridge reduces limescale, chlorine and impurities for cleaner, clearer, great tasting drinks
Change the cartridge every 4 weeks for best results
Ring pull handle for easy removal, no pre-soaking required
Fits all BRITA MAXTRA jug systems and partner products
BRITA cartridges are 100% recyclable