17x27x1 Exact MERV 8 AC Furnace Filters 6 Pack additives ******Cases come 5 grey and

******Cases come 5 grey and 5 black

drip irrigation

double junction pH electrode that has a built-in temperature sensor

with two independent groups (A and B)

antiseptic

17x27x1 Exact MERV 8 AC Furnace Filters 6 Pack additives ******Cases come 5 grey andNordic Pure MERV 8 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 and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters