Refill Kit - Red & Yellow Test Reagents
Test chlorine, bromine, and pH levels in your pool or spa with this handy refill kit for your existing tester. Store your set in a cool, dark place and replace all reagent solutions once a year for accurate testing.
Kit contains:
- 1/2 oz. bottle Test Agent #1 (OTO Yellow for bromine or chlorine)
- 1/2 oz. bottle Test Agent #2 (Phenol Red for pH)
- Does not include instructions or test vials, reagents only.
Testing your hot tub water allows you to balance the chemical properties so that it is neither too alkaline nor too acidic, for both bather comfort and equipment protection. It also allows you to maintain a spa sanitizer system to keep the water healthy and free of harmful microorganisms. Complete instructions for water balancing are found on our hot tub water chemistry page.
