20x30x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack lighting-systems/kits 6 cm / 16"

6 cm / 16"

The controller would only be able to power up to three of these models for a total of six fans

it also allows you to operate both HPS and MH lamps

【Coverage Area】Perfect for 5’x4’ vegetative coverage at 28” and 5’x3’ flowering coverage at 24” height

20x30x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack lighting-systems/kits 6 cm / 16"Nordic 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