20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack fluorescent-lighting Spectrum tightly stacks nodes

Spectrum tightly stacks nodes

You should soon see improved yields and reduced nitrates among your fruit trees and faster rooting and more brilliantly colored foliage and blooms for your ornamentals

It has a metal front grill with impact resistant plastic rear grill and chemical resistant polypropylene blade

Each coverall is individually packaged and sterilized to a 10⁻⁶ sterility assurance level (SAL) preventing workplace contamination and cross-contamination of products or materials

JMS Stylet Oil acts as a smotherant and prevents insect respiration and spore germination

20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack fluorescent-lighting Spectrum tightly stacks nodesImportant 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