Free ownership-cost tool
Water filter running cost calculator
Compare a water filter on the cost you are likely to own, not just the day-one price. Enter the unit price, replacement-filter cost and expected replacement frequency.
Filters per year
£70.00
Total ownership
£330.00
over 3 year(s)
Average/month
£9.17
Use the figure to compare like with like
Replacement frequency varies with the system, usage and water conditions. Use the manufacturer's schedule as a starting assumption, then check that replacement cartridges are actually available in the UK.
Planning estimate only. It excludes installation, water, electricity and maintenance costs that may apply to particular systems.