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The Philips WP3975 is a replacement pre-filter cartridge for Philips under-sink water filtration systems, built with a dual PE + GA (coconut-shell granular activated carbon) composite structure. The PE stage captures sediment, rust and large suspended particles, while the granular activated carbon layer adsorbs residual chlorine, heavy metals and off-colours and odours to improve the taste of drinking water. Compatible with Philips WP4111 and WP4161 under-sink systems; filter life is approximately 4000 L or 1 year, whichever comes first, depending on local water quality and usage.
Combines PE polyethylene fibre with coconut-shell granular activated carbon (GAC), so a single cartridge handles both particle capture and adsorption filtration.
