24x24x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack Grow System/ Trays/ Reservoirs We recommend that you change

We recommend that you change your air filter every 30-90 days to maintain maximum efficiency and indoor air quality

Size: 38x20

Rugged and durable with waterproof connectors

1 x Inline pH Sensor

Keep the container tightly sealed when not in use

24x24x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack Grow System/ Trays/ Reservoirs We recommend that you changeNordic Pure 24x24x4 Pleated Air Filters MERV 15 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, smoke particles, smog, allergens, virus carriers, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured