16x18x1 MERV 13 AC Furnace Filters 6 Pack ventilation and ducting The blocks can then be

The blocks can then be placed on top of a slab to provide for a larger growing volume

How should BotryStop WP be applied

Soft Scale

Minimum Order Quantity for the product is 4 units

16x18x1 MERV 13 AC Furnace Filters 6 Pack ventilation and ducting The blocks can then beNordic 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