Main components: Carbon filtration, activated ceramic balls, calcium sulphite and KDF. Carbon + KDF filter media: KDF removes up to 10x more chlorine than carbon alone. KDF also releases a powerful anti-bacterial which helps prevent bacterial build-up in the shower head and reduces heavy metals/contaminants. In/out: 1/2” male & female Max temperature: 80°C / 120°F Service life of cartridge: 12000 gal or 6 months Dimensions: Length (including threads) - 125mm Length (excluding threads) - 110mm Width (Widest point) - 72mm