21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack loose coco lightly dust the transplant hole

lightly dust the transplant hole with granular mycorrhizae before transplanting

It comes equipped with industrial strength aluminum fan blades and operates at three speeds with a smooth side-to-side oscillation

Compatible with Active Aqua 4' X 8' Rolling Bench System

See attached image for specs

gravel beds

21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack loose coco lightly dust the transplant holeNordic Pure Trane Replacement MERV 12 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air