Eco Crystal Half Carbon Half PP Filter is a dual-stage water filtration cartridge designed to improve drinking water quality. The PP layer helps remove dust, sediment, rust, and turbidity, while the activated carbon layer reduces chlorine, odor, color, and unpleasant taste from water. It helps protect water purifiers and improves the overall quality of drinking water. Easy to install and suitable for domestic water purifiers, RO systems, coffee machines, and drinking water applications.