11 1/4x11 1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack Grow Strong Designed to provide a cost

Designed to provide a cost effective way for farmers to rebuild mineral reserves of their soils and thus the nutritional value of their food

Numbers of control channels- 3

and soilless-based gardening mediums without the fear of irrigation line clogging and without the nasty smells associated with other brands

through a length of 1/8" Super-Flex Tubing

little change is seen in water pH when regular flower food is added

11 1/4x11 1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack Grow Strong Designed to provide a costNordic 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.