18x22x1 MERV 14 AC Furnace Filters 6 Pack Tents & Tarps Simultaneous display of pH

Simultaneous display of pH

Athena Balance is a simple formula of potassium silicate specifically concentrated to buffer irrigation water and stabilize to ideal pH

Combine multiple RAY44 units in a side-by-side array to achieve uniform coverage over a 4-foot growing area

33 cu ft (2–2 1/2 gal) of wetted coir

RAW = SOLUBLE FULLY LOADED RETAIL DISPLAY

18x22x1 MERV 14 AC Furnace Filters 6 Pack Tents & Tarps Simultaneous display of pHNordic 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.