What is the active ingredient shows on the label of the product?

1_3 dichloro E 5 Dymethylhydanton 81% some other dichloro 16% inert 2.8%. Hope that helps

For a three person tub used by one person 3x/wkhow long will this cartidige last?

I can't say for sure but our family of 5 uses our tub daily sometimes 2x per day on the weekends. So far our cartridge has lasted just shy of a month.

For a three person tub used by one person 3x/wkhow long will this cartidige last?

There is a dial on the side to set for one month three months etc. I set it at one for a six person hot tub .

OK to use the standard mineral inline cartridge to go with the @ease chlorine cartridge? King's website says to use @ease mineral cartridge.

I originally used Frog mineral cartridges with the gray chlorine /calcium hypochlorite but switched to Nature 2 (use zip ties to fasten on the inline or place inside the filter) TWICE the mineral content, same price and you can run at .5 ppm chlorine. This was my entire reason for changing over from nasty, unhealthy bromine. Nature 2 comes with complete instruction for this method. SO the answer is ...YES !

ASIN	B01FCGVWGM
Brand	FROG
Country of Publication	USA
Customer Reviews	4.6 out of 5 stars 441 Reviews
Item Form	Cartridge
Manufacturer	King Technology
Net Quantity	1.0 Count
Number of Items	1
Product Benefits	Maintains Clean Sanitized Water
UPC	722906032731
Unit Count	1.0 Count

Frog @Ease Smart Chlor Cartridge

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