13x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack house and amp Using the SPH-1 allows for

Using the SPH-1 allows for a "clean" installation and eliminates the need for daisy-chain Y-splitters to be used to interconnect multiple modules or sensors

Oneness is 100% bio-degradable and made with chelates derived only from natural sources

more cost-effective compared with other same type lights

7% Mono Silicic Acid

13x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack house and amp Using the SPH-1 allows forNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.