Proper and frequent testing of pool and spa water is your first line of defense in protecting your family and your pool or spa.

NOTE: It is recommended that you change the reagents in your test kit yearly.

4-in-1® Deluxe Test Kit (OTO)
Includes essential water tests for total bromine, total available chlorine, pH, acid demand and total alkalinity.

4-in-1® Plus DPD Test Kit
Performs these basic water tests: total chlorine, free chlorine, total bromine, pH, acid demand and total alkalinity.

Professional Test Kit
Performs all the same tests as the commercial model plus tests for iron and copper levels.

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