20x30x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack spl_spectrumking Brand: Quartz Cleaner

Brand: Quartz Cleaner

(1 tsp is approximately 44 tsp/44 gal water/acre) – Recommended for preventative treatments before signs of infestation

which often exceeds that available from the power source

Perfect for growing salads and herbs or for early season seed starting

- Less heat

20x30x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack spl_spectrumking Brand: Quartz CleanerNordic 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