Ours was only £35 and it came with filters to last 2 years. It was easy to install and sooooo worth it. AquaHomeGroup 20 Stage Shower Filter with Vitamin C for Hard Water - High Output Shower Water Filter to Remove Chlorine and Fluoride - 5 Cartridges Included -Consistent Water Flow Showerhead Filter https://smile.amazon.co.uk/dp/B092VB6R7Y/ref=cm_sw_r_cp_api_glt_fabc_RWKNJJ3DEPKX7SMFG022?_encoding=UTF8&psc=1
Ours was only £35. It was easy to install, came with 2 years worth of filter replacements, and sooooo worth it