Poolmaster 23225 1/2-Ounce OTO and Phenol Red Replacement Indicator Solutions for Spa and Swimming Pool Water Testing, Small, Multi

This item is a must-have for anyone looking to maintain proper water chemistry in their pool or spa.

The kit includes 1/2-ounce solutions of OTO and Phenol Red, which test the chlorine level and pH level respectively.

The Phenol Red test is specifically designed to measure the pH level of your water, providing you with accurate and reliable results.

Unlike other tests on the market, this kit includes a sealed solution to comply with transportation regulations, ensuring safe and easy use.

With this product, you can rest assured that your pool or spa is always in optimal condition, perfect for a relaxing and enjoyable swim.