HydroTools by Swimline Chlorine Test Oto/Phenol Red Solutions Easter Item Number: JEL0920

Item Number: JEL0920

heavy duty design 20-ounce capacity

Soft grips absorb pressure

two inside pockets

HydroTools by Swimline Chlorine Test Oto/Phenol Red Solutions Easter Item Number: JEL0920HydroTools by Swimline Chlorine Test Oto Phenol Red Solutions is a pool water testing kit that includes both OTO (Orthotolidine) and Phenol Red solutions. The OTO solution is used to test for chlorine levels in the pool water. The solution turns yellow when chlorine is present and the deeper the color, the higher the chlorine level. The Phenol Red solution is used to test for pH levels in the pool water. The solution turns red when the pH level is