When properly installed and maintained the granules effectively prevent the release of minerals in the air.
Granules should be replaced every 2-3 months; hard water usage may require more frequent replacement.
One box includes 3 single refill packets - use just one packet per refill.
For use with the AIR-O-SWISS demineralization cartridge AOS 7531.
AIR-O-SWISS offers two options for replacing the demineralization cartridge: Replace the whole cartridge with a new part (model AOS 7531) or use replacement granules (model AOS 7533 Refill Granules 3-Pack) to extend the life of the cartridge.
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