13_1/4x13_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Plant Support Liquid pH adjuster with proprietary

Liquid pH adjuster with proprietary formulation that offers superior pH control

Using as a Concentrate Vaporizer

square wave technology provides excellent current stability and consistency in output levels

High- 62 DB

where fish and beneficial insects are present

13_1/4x13_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Plant Support Liquid pH adjuster with proprietaryNordic 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