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How do I size my Fortitude Pro tank with my Harmony water softener?

Aquasure Support
Aquasure Support

We recommend matching the Fortitude Pro tanks with the Harmony Series tanks like so:



  • AS-FP600 - 32,000 grain unit 
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  • AS-FP1000 - 48,000 grain unit 
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  • AS-FP1500 - 64,000 grain unit