3-in-1 Filter Replacements › 3-in-1 Bacteria Filter Filter Replacement Image 1 of 1 3-in-1 Bacteria Filter Filter Replacement £29.95 Compatible with a range of 3-in-1 boiling water tap systems. Frequency: One time purchase £29.95 Subscribe Save 10% Sale Price: £26.96 Original Price: £29.95 Every 6 months Add To Cart Added! Compatible with a range of 3-in-1 boiling water tap systems.