14x16x1 MERV 13 AC Furnace Filters 6 Pack meters-&-solutions 6 L/kWh - 5

6 L/kWh - 5

Placing the ExHale CO2 Bag slightly above the level of your plants will ensure they receive the CO2 they need 24 hours a day for up to 6 months

It's OMRI Listed for organic use

Tie strings also allow for a more adjustable fit

naturally occurring insects that feed on fly pupae

14x16x1 MERV 13 AC Furnace Filters 6 Pack meters-&-solutions 6 L/kWh - 5Nordic 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