The 511297 Yellow 4-in-1 Chlorine Test Strips are designed for quick and easy testing of pool and spa water chemistry using chlorine as the primary sanitizer. These test strips allow users to check multiple water balance parameters at once, helping maintain safe and properly balanced water conditions.

 

Each strip is dipped directly into the water and provides fast, color-based results that can be compared to the included chart. Packaged in a bulk case of 48 strips, this product is well suited for routine maintenance by pool owners, service professionals, and commercial facilities.