21_1/2x23_3/8x1 Exact MERV 12 AC Furnace Filters 6 Pack pumps-and-irrigation-supplies Purchase this replacement sensor for

Purchase this replacement sensor for your Oakton Low/High/EC High tester and keep your instrument running in the most efficient shape possible

Use 1-4 tsp per gallon

Compensation of 0-50°C

Weight: 7 lbs

21_1/2x23_3/8x1 Exact MERV 12 AC Furnace Filters 6 Pack pumps-and-irrigation-supplies Purchase this replacement sensor forNordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different