16_1/2x21_5/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Nutriants Use it for propagating cuttings

Use it for propagating cuttings and as a transplanting drench for newly potted plants

When calibration is complete

Universal BNC connector makes this the perfect replacement electrode

Listed diameter is measured from the inside of the bottom of the saucer

dependable light PHOTONTEK fixtures have industry leading performance

16_1/2x21_5/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Nutriants Use it for propagating cuttingsNordic Pure MERV 14 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.