20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 1 Pack reflective-and-greenhouse-films The Quantum Dimmable Ballast is

The Quantum Dimmable Ballast is silent

Tribus Original is highly recommended for use on seedlings to reduce time from cutting to rooting in clones and to stimulate new root development

An easy-to-fill reservoir system delivers water and nutrients from below

Cryptolaemus are often called mealybug destroyers because of their voracious appetite for mealybugs

These blades have a nice action and sound you will enjoy

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 1 Pack reflective-and-greenhouse-films The Quantum Dimmable Ballast isImportant 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 7 8 and 5 1 4 inch depth filters,