17_1/4x29_1/4x1 Exact MERV 12 AC Furnace Filters 6 Pack Monterey Lawn & Garden Products This coir can be blended

This coir can be blended with soil

Recirculating: Mix 2-3 tsp

we have included reinforced stitching to hold the extra weight

Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4

Does not include hardware pack

17_1/4x29_1/4x1 Exact MERV 12 AC Furnace Filters 6 Pack Monterey Lawn & Garden Products This coir can be blendedNordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different