These pH strips are suitable for a wide range of applications such as testing the pH balance of drinking water, pool, aquarium, RO system, Spa and hydroponic. Every box contains 100 plastic pH test strips. Each pH strip has four colored squares on it, and they will change color after being submerged in the water. Each square has its own pH range and will change color accordingly. After submersion, the strips can then be compared with the color scales placed on the case to determine the pH. This metho

These pH strips are suitable for a wide range of applications such as testing the pH balance of drinking water, pool, aquarium, RO system, Spa and hydroponic. The bottle contains a total amount of 150 plastic pH test strips. Each pH strip has four colored squares on it, and they will change color after being submerged in the water. Each square has its own pH range and will change color accordingly. After submersion, the strips can then be compared with the color scales placed on the case to determine

These 2 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure pH, chlorine and bromine. Each strip has two colored squares on it, and they will change color after being submerged in the water. Each square has its own values range and will change color accordingly. After submersion, the strips can then be compared with the color

These 4 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure chlorine, bromine, pH and total alkalinity. Each strip has four colored squares on it, and they will change color after being submerged in the water. Each square has its own values range and will change color accordingly. After submersion, the strips can then be compa

These 5 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure free chlorine, bromine, total chlorine, total alkalinity and total hardness. Each strip has five colored squares on it, and they will change color after being submerged in the water. Each square has its own values range and will change color accordingly. After submers

These 6 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure free chlorine, bromine, pH, total alkalinity, total hardness and cyanuric acid. Each strip has six colored squares on it, and they will change color after being submerged in the water. Each square has its own values range and will change color accordingly. After subme

These 15 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, aquariums, fish tanks, industrial water, ponds, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure all the water main values: - PH - Hardness - Free chlorine - Bromine - Total chlorine - Iron - Copper - Lead - Nitrate - Nitrite - Fluoride - Iodine - Cyanuric acid - Carbonate root - Total alkalinity Eac

These 16 in 1 test strips are the easiest way to measure the quality of your water. They can be used in a wide range of fields such as drinking water, aquariums, fish tanks, industrial water, ponds, pools and spa. The bottle contains a total amount of 50 plastic test strips to measure all the water main values: - Total Alkalinity - pH - Hardness - Cyanuric Acid - Total Chlorine - Free Chlorine - Bromine - Nitrate - Nitrite - Iron - Chromium/CR (VI) - Lead - Copper - Mercury - Fluoride - C