12x16x1 MERV 14 AC Furnace Filters 12 Pack shredder Independent proportional settings for pH

Independent proportional settings for pH and TDS can be adjusted from 0 to 90 seconds

Adaptable to All Soil Media Types Stake or rod mount options available

Includes electrode

Tent Dimensions: 29

Set the adjustable output by monitoring the exhaust air for odors

12x16x1 MERV 14 AC Furnace Filters 12 Pack shredder Independent proportional settings for pHNordic 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.