This HG-N cleaning cartridge is compatible for the new HG-N model filter base on all Levelucks models (included SD-501). Use of cleaning cartridge at least twice a year to maintain performance and extend the life of your ionizer is highly recommended. Made in U.S.A.
For New HG-N Model Only – (please see the product images to verify)
Holds 3 times more of the cleaning granule than E-Cleaner to get better cleaning result.
Use only Crystalline Cleaning Granule for Refill (AF-CCG).
Using it twice a year extends the life of your water ionizer
Made in USA