Nature2 W29300 Spa Test Strips, 50 Count

I have recently switched my spa over to Nature2 spa sanitizer and you use Potassium Peroxymonosulfate 'MPS' as an oxidizer. These strips are the only ones I've found that measure the MPS level, the Chlorine or Bromine test strips won't.Only thing I found if you do add chlorine which I do if the tub is left unattended for a period of time the strips will give you a false reading until the chlorine level drops off.Chlorine or Bromine strips will show nothing if there is MPS in the water but no Chlorine or Bromine. However the MPS strips show a reading from the chlorine when there is no MPS in the water.These strips are a must if you are using a mineral sanitizer and MPS as an oxidizer.

arrived in the time stated. Good quality strips, measures well

Work great with my Nature2 System. Important to use these and not other test strips, because these are the most important readings for the Nature2 low chlorine system, when you're using MPS Shock.I use this regularly, and it has been very helpful in maintaining my hottub, using the Nature2 system, which we converted from Bacqua Spa to. Couldn't be happier. If you're thinking of getting rid of BacquaSpa, but don't want to use a lot of chlorine, or bromine, the Nature2 system is what you want.A little expensive at $10 for 50, but i don't use them every day. One of these should last me all winter.

works great

Super easy and keeps you informed about what your water is doing. I have order them 2 times now. I will keep buying them. They are super easy to read and easy to use. Simply put in the water for a few seconds. Done!