Air Bear 16x25x5 (4 7/8) Replacement 266649-105 MERV 14 Air Filters 2 Pack pots Release Phytoseiulus persimilis at first

Release Phytoseiulus persimilis at first sign of mite infestation

The 4-20 mA output can be configured for PID control

The Hanna Instruments HI98107 pHep pH tester is a rugged and reliable pocket-sized tester for use in the lab or field

Lettuce Drop (Sclerotinia sp)

Air Bear 16x25x5 (4 7/8) Replacement 266649-105 MERV 14 Air Filters 2 Pack pots Release Phytoseiulus persimilis at firstImportant 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,