Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 12 Pleated Plus Carbon 1 Pack complete grow kit significantly increases durability• Backed by

significantly increases durability• Backed by Apera's proprietary sensor technology from Switzerland• Easy-to-use design and fast calibration adjustment• Replaceable Swiss LabSen Spear Soil pH Probe• Large 3-color backlit screen gives you clear information• Durable structure

On-screen tutorial messages for calibration

5) and buffered to pH 6

• Faucet end connector

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 12 Pleated Plus Carbon 1 Pack complete grow kit significantly increases durability• Backed byImportant 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,