Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 12 Pleated Plus Carbon 4 Pack Garden Hygiene and Safety disease-free mother plant directly beneath

disease-free mother plant directly beneath the node at a 45 degree angle

The round duct tailpiece is compatible with 4” inline exhaust fans

The HI98118 has a very large easy to read LCD display that shows both pH and temperature along with calibration

Foot Print 4 X 4 ft

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 12 Pleated Plus Carbon 4 Pack Garden Hygiene and Safety disease-free mother plant directly beneathImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3 8 and 5 1 4 inch depth filters,