Reliable Results in Seconds - Includes 100 easy-to-use pool and spa test strips for 4 common water test parameters: Free Chlorine, Total Chlorine/Bromine, pH, & Total Alkalinity. Quick & Easy to Use – Simply collect your water sample, dip your test strip, and compare the color against the back of the bottle to determine your results. Product instructions are written in non-technical language to simplify pool, spa, and hot tub testing. For Homeowners and Professionals – Taylor products are built to professional standards but with processes easy enough for any pool or spa owner to use. With unparalleled customer service and support, Taylor is the go-to for every distributor, retailer, commercial operation, and homeowner… wherever water is tested. Proudly Made in the USA – Since 1930, Taylor Water Technologies LLC has been the leading developer of water testing products. All Taylor products are engineered and manufactured in the USA. You can trust that when you choose Taylor, you will receive the highest quality water testing equipment on the market.