12x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Reflective & Greenhouse Films It allows large plants to

It allows large plants to be moved safely and with ease

generator-ready way to dissipate heat with fan-powered cooling

pH Down™ is an additive designed for use when you need to lower the pH into a more acidic range

a higher transplant survivability

12x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack Reflective & Greenhouse Films It allows large plants toNordic 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