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insta-Test Phosphate test strips are sold in a rectangular cardboard box. Label on box shows a child under water. Writing states Phosphate 0-2500 parts per billion test strips. 25 test strips. Bottle is a white cylindrical plastic bottle with a pop-top. Also contained in the box is a clear test tube with lid.

LAM-3021-G - Test Strips for Phosphates 25 Ct

$14.99 
SKU: LAM-3021-G
Measures the phosphate levels from 0, 100, 200, 300, 500, 1000, 2500 ppb in just 15 seconds. Each bottle includes 25 test strips packaged in a waterproof PopTop bottle with a molded desiccant liner, which protects the strips from moisture and UV light.