Hanna pH4 Calibration Solutions -- 16 oz Ozone it plugs into the UIS

it plugs into the UIS platform

For more information like application rates

The patented Element Air treatment systems are the most practical and effective solution for airborne and surface microbial contaminants

It contains a blend of essential nutrients including Phosphorous

Hanna pH4 Calibration Solutions -- 16 oz Ozone it plugs into the UISHanna's buffer solutions are made from established formulas and are standardized with a pH meter calibrated to NBS NIST primary standard buffer solutions. Now the pH 4 buffers carry lot # and expiry date as well as pH C chart on every bottle. HI 7004L C and HI 8004L C are also supplied with an analysis certificate. Hanna pH 4 buffers contain potassium hydrogen phthalate. They are standardized using a pH meter calibrated by primary standard buffer