Hanna Instruments HI784-11 Marine Ammonia Checker HC Certified Standard Kit 09421024920869 Position the washer on the

Position the washer on the filter stem before inserting the element into your gravity filter housing

A replaceable

porch railing - wherever you keep your Pro filtration system

17 mg/L @ 5

Hanna Instruments HI784-11 Marine Ammonia Checker HC Certified Standard Kit 09421024920869 Position the washer on theHI784 11 Marine Ammonia Checker HC Certified Standard Kit The HI784 11 is a certified standard kit designed to validate the performance of the HI784 Marine Ammonia Checker HC (Handheld Colorimeter). Ensure your colorimeter delivers accurate, reliable ammonia readings every time with this precision calibrated verification kit. What's Included One sealed cuvette with a zero ammonia value (blank reference) One cuvette pre tinted to a standard ammonia