22x30x1 MERV 14 AC Furnace Filters 6 Pack Extension Fit around the sides of

Fit around the sides of the greenhouse or between rows

riobrave release a bacteria once they have infected the pest

Black Scale (Saissetia oleae)

Works best in warm weather (60°F+)

Using the heat mat together with our SunPack™ Heat Mat Temperature Controller (item SPTEMP) gives gardeners the best possible control of temperature and humidity

22x30x1 MERV 14 AC Furnace Filters 6 Pack Extension Fit around the sides ofNordic 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.