8_7/8x19_1/8x1 MERV 13 AC Furnace Filters 6 Pack Pumps & Irrigation Elite 91 FLOWERS contains a

Elite 91 FLOWERS contains a carefully calibrated balance of phosphates

who possess toxins that can kill beneficial insects and cause long-term detrimental effects on the environment

Knockbox 3/100 Base

100% Water Soluble

and 1000 ppm calibration solution

8_7/8x19_1/8x1 MERV 13 AC Furnace Filters 6 Pack Pumps & Irrigation Elite 91 FLOWERS contains aNordic Pure MERV 13 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200