AQUACHEK 4-In-1 Yellow Chlorine Test Strip 50 Strips per Bottle 511242A protective-clothing Add weekly to maintain near

Add weekly to maintain near zero phosphate levels

Dielectric Protection Yes

Features a 7-inch diameter that provides a snug fit to catch all the dirt and debris that passes through your pump

Pressure gauge also included

AQUACHEK 4-In-1 Yellow Chlorine Test Strip 50 Strips per Bottle 511242A protective-clothing Add weekly to maintain nearAquaChek 511242A AquaChek 4 In 1 Test Strip; Total Chlorine Total Bromine Free Chlorine Testing, Yellow, 50 Strips Bottle Ideal for customers who use chlorine as the sanitizer in their pool or spa. Includes a test for Cyanuric Acid (Stabilizer), which is especially important for outdoor pools and spas which are subject to chlorine dissipation from UV rays.