Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 1 Pack lighting-systems/kits Nordic Pure 12x20x2 MERV 13

Nordic Pure 12x20x2 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

Expand the lifetime of your Oakton pH tester by keeping these replacement sensors on hand

4" Booster In-Line Duct Fan

Encourages strong defenses against stressors

Liquid Media Refill for Tissueponics Kit

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 14 Plus Carbon 1 Pack lighting-systems/kits Nordic Pure 12x20x2 MERV 13Important 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,