4 in 1

Our 4 in 1 Products category offers quick and reliable water test kits that measure four of the most important water quality factors in a single, easy-to-use test. These kits typically check for pH, chlorine, alkalinity, and hardness — giving you a clear picture of your water’s overall condition. Ideal for pools, spas, drinking water, and everyday testing, they provide accurate results in just minutes, making it simple to keep your water clean, safe, and well-balanced.