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The cells alone are $850 and you need to replace them every 4-5 years... https://www.amazon.com/gp/offer-listing/B005IVZGXC/ref=dp_olp_new_mbc?ie=UTF8&condition=new

A well-maintained salt chlorine generator will last 3–7 years. Replacing the salt cell costs $700–$1100. Replacing the control board costs $500–$900. You can extend the lifespans by maintaining a consistent salt level, cleaning the cell only when needed, and using the reverse polarity function.

You can buy a lot of chlorine for $1000 .... and its good to have on hand if you need to sanitize Anything in a pandemic.