16x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack Reflective & Greenhouse Films Grow1 Weed Barrier Mats are

Grow1 Weed Barrier Mats are yet another weapon to add to your arsenal of defense for your roots

and 10' x 20'

or any loose growing media like peat

HGRES40PWC - 40 Gal Res Cover Premium White 38

Super concentrated

16x24x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack Reflective & Greenhouse Films Grow1 Weed Barrier Mats areNordic Pure 16x24x4 MERV 10 Pleated Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon