APEX RF-1011 Granular activated carbon (GAC) Cartridge which removes organic chemicals, odors or tastes to water such as hydrogen sulfide & chlorine.
https://apexwaterfilters.com/apex-rf-1011-chlorine-chemical-reduction-cartridge-2-5-x-10

AXEON HR3-4040 Reverse Osmosis Membrane.It offers increased production, high rejection rates and low energy consumption by operating at low applied pressures.
https://apexwaterfilters.com/axeon-hr3-4040-reverse-osmosis-membrane