When you take a hot shower, chlorine in the untreated water can cause dry skin, dry hair or exaggerate pre-existing skin conditions such as eczema or psoriasis. The Finerfilters Slimline shower filter reduces levels of chlorine, heavy metals, and helps to reduce scale and bacterial build up. Carbon & KDF filter media. KDF removes up to 10x more chlorine than carbon alone and is still effective in hot water. KDF is very effective at removing heavy metals and is bacteriostatic, meaning bacteria won’t grow on the media. Product Details: Cartridge life span – 6 Months or … litres, whichever comes first. The cartridge contains 8 stages of filtration: 1. Stainless steel mesh 2. PP cotton 3. Activated carbon 4. KDF 55 5. Calcium sulfite 6. Activated carbon 7. Ceramic balls 8. PP cotton