JED 5-Way Pool Test Kit Refill. It comes with a storage case and easy-to-follow instructions. This refill kit includes over 100 tests for total and combined chlorine, bromine, pH, acid demand, and total alkalinity. It also features a waterproof instruction card for added convenience.
WARNING: This product can expose you to chemicals including ortho-tolidine, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov