12x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack Lamps • Improves nutrient and water

• Improves nutrient and water uptake

A replacement probe for Bluelab Combo and pH Meters

up to 8x stronger than General Hydroponics

and cloth junction

80 x PotPro™ | 6" Tall (1 Gallon)

12x20x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack Lamps • Improves nutrient and waterNordic 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