5-in-1 Water Test Strips for Swimming Pools and Spas, 50 strips, for testing pH and nitrate hardness

5-in-1 Water Test Strips for Swimming Pools and Spas, 50 Strips, for Testing Nitrate, pH, and Hardness. Feature: The test strips offer high precision, simple operation, and convenient transport. Quickly examine the general hardness, pH, nitrite, and carbonate hardness in water using the colorimetric method. Commonly used in swimming pools, spas, and other industries. Description: Quantity: 50 pieces/box Name: 5-in-1 Swimming Pool Test Strips Nitrate Range: Salt/Fresh: 0-200 mg/l Nitrite Range: Salt/Fresh: 0-10 mg/l pH Range: Salt/Fresh: 6.0-9.0 Carbonate Hardness Range: Salt/Fresh: 0-240 mg/l General Hardness Range: Fresh: 0-180 mg/l Package Includes: 50 pieces/box 5-in-1 Pool Test Strips