15x25x1 Exact MERV 13 AC Furnace Filters 12 Pack Trimming Shears This single shelf is used

This single shelf is used to add or replace a shelf in the Vertical Grow Shelf system

Setup options include automatic shut off timing and temperature unit displayed

You need to add nutrients when you first water the substrate (use your nutrient supplier's recommendations)

but may take up to 24 hours to reach its full potential

8 passively cooled bars eliminate moving parts and provide full-spectrum

15x25x1 Exact MERV 13 AC Furnace Filters 12 Pack Trimming Shears This single shelf is usedNordic 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