Rainbow All-In-One 78 DPD Test Kit by Pentair

The Rainbow All-In-One test kit is for pools and spas that use chlorine as their sanitizer. Testing your pool and spa water is necessary in having a sanitized, balanced and crystal clear water.

The Rainbow All-In-One 78 DPD Test Kit is a great tool for testing your chlorine and pH levels. This water testing kit will test for your free chlorine, combined chlorine, total chlorine, pH and total alkalinity.