AquaChek Item Number 561682A 25 Strips Tests for: Potassium Monopersulfate, pH, and Total Alkalinity. Monopersulfate (MPS) is an oxidizing agent used in mineral purification systems such as Frog®, SpaFrog®, Nature2®, PoolRx™, or SpaRx™*. Monopersulfate can also be used as an oxidizer for brominated pools and spas. *Frog and SpaFrog are trademarks of King Technology, Inc. Nature2 is a trademark of Zodiac Pool Care, Inc. Pool Rx and SpaRx are trademarks of PoolRx Worldwide Inc. Use of trademarks does not imply endorsement. To keep you spa water clean and healthy, test the water before and after each use! If used in a pool we recommend testing at two ends or sides of the pool a minimum of twice a week. It’s also a good idea to write down your results each time you test. Get 3 important test results in just one dip! Dip an AquaChek MPS test strip in your pool or spa water for one second and remove it immediately. You get test results in seconds!
