12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack cleanroom inline shut-off

inline shut-off

Valox housing and stainless steel electrodes for good chemical compatibility

Two of the casters have brakes to keep the system secure when stationary

The Grow Flow Expansion Kit includes six growing modules

Once buried

12x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 12 Pack cleanroom inline shut-offNordic 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