11 1/4x19 1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack reflective-and-greenhouse-films Set point adjustment (from 0

Set point adjustment (from 0 to 14 pH) and calibration procedures are easily performed with trimmers on the front panel

This concentrated liquid fish fertilizer can be used as a soil drench or foliar feed without risk of burning

per gallon of water for a concentrate feed solution

It increases yields when used as a preventative by keeping pests

11 1/4x19 1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack reflective-and-greenhouse-films Set point adjustment (from 0Nordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.