12x12x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Environmental Controllers make the PROfilters 45s and

make the PROfilters 45s and 70s ideal for residential filtration

This reduces size and weight

allowing for maximum effectiveness

The Shorty line has all the same features included in the standard Gorilla Grow Tent

The bags are tear and puncture resistant and durable enough to simmer in water and use in the microwave

12x12x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 6 Pack Environmental Controllers make the PROfilters 45s andNordic 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