20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 2 Pack dis Contains three dual-ball bearing fans

Contains three dual-ball bearing fans with PWM-controlled motors to minimize noise

We also have a 6-site Bubble Flow Bucket system and a 12-site Bubble Flow Bucket system available

HI700661 pH electrode cleaning solution sachet for agriculture (3)

• Easy to install

Contains no contains no volatile organic compounds (VOC) or synthetic chemicals

20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 2 Pack dis Contains three dual-ball bearing fansImportant 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. If you are replacing a 4 3 8 depth 20x25x4 filter