|
Guardex 4-In-1 Test Kits have been
the standard of the industry for decades. The 4-In-1 Test Kits
test for chlorine/bromine, pH, alkalinity and acid demand. It
is available with either DPD (Red Box) or OTO (Blue Box) as the
method to test sanitizer levels. The DPD version has the added
benefit of being able to test both free and total chlorine levels.
|
|