21 1/2x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage single junction pH electrode with

single junction pH electrode with a DIN connector that is compatible with the HI9814 Groline portable pH/EC/TDS meter

3” in length

This combination makes the meter particularly designed to withstand harsh environments such as fertilizer solutions

Simple toggle clamp for easy lamp height adjustment

21 1/2x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage single junction pH electrode withNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.