16x30x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack Grow Strong Rockwool's high water holding capacity

Rockwool's high water holding capacity will enable you to go on vacation without worrying about your plants drying out

Forget to water

has louvered venting for cool operation

Increased Yields – Clinically tested formulation shown to increase plant biomass

floors and other equipment

16x30x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 6 Pack Grow Strong Rockwool's high water holding capacityNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in