17x25x1 MERV 13 AC Furnace Filters 6 Pack Light Fixture from a 6 bar design

from a 6 bar design

and 16" diameter

DiPel PRO DF is best used when the larvae are actively feeding but before the plants show extensive damage

• Constant linear response curve (as opposed to other meters’ Gaussian response) yields higher accuracy independent of wavelength—perfect for measuring LED light output

Diamond Black contains an exceptionally high percentage of plant-active humates

17x25x1 MERV 13 AC Furnace Filters 6 Pack Light Fixture from a 6 bar designNordic 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