20x24x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack environmental This perlite has numerous hydroponic

This perlite has numerous hydroponic applications as well

Is safe around people and pets when used as directed

improved nutrient and water uptake

Our new HEAVY DUTY modular commercial heat mats will provide uniform heat for hundreds of seedlings or cuttings

20x24x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack environmental This perlite has numerous hydroponicNordic Pure 20x24x2 MERV 12 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 material