18x24x2 Pleated MERV 14 Air Filters 3 Pack Pest and Disease Control The main controller comes with

The main controller comes with a sensor already

gradually warming up your plants

These Strongboxes are made of food-safe stainless steel

Works with timers or controllers

Depending on the machine

18x24x2 Pleated MERV 14 Air Filters 3 Pack Pest and Disease Control The main controller comes withNordic 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.