Pond care 5 in 1 multi colored dip strips. Five different ways to protect fish from dangerous water conditions. This kit measures 5 important parameters: pH, Nitrite, Nitrate, carbonate hardness, and general hardness. This pond care 5 in 1 dip strips is one of top quality items in pond treatments department. Pack of 25 test strips will last for up to 25 weeks. Includes a stay dry tube that offers superior moisture protection. Accurate and easy to use, just dip and read.