12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Fertilizer 2 to 40 GPM

2 to 40 GPM

easy-to-read display lets you monitor and adjust settings at a glance

to give you the biggest

Silicator delivers an absorbable form of silica directly to your plants

8-Burner: Spaces 28' x 28' and smaller

12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Fertilizer 2 to 40 GPMNordic 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