A.O. Smith 335831-000 / 334667-000  
ZX Dual Filter

- The ZX Dual Filter combines Post-Carbon and Silver Charged Membrane Technology (SCMT).
- Post-Carbon improves and polishes the taste of water.
- SCMT acts as a redundant filtration technology to help prevent regrowth of microorganisms.
- Suitable for the following models:
    - S7
    - A6
- Note:
    - Some S7 and A6 models use separate Post-Carbon and SCMT cartridges.
    - The ZX Dual Filter cartridge replaces both cartridges.