16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack cube rapid vegetative growth

rapid vegetative growth

All 40 Series DE ballasts are fully compatible with the Autopilot PX1 Digital Lighting Controller (APDPX1)

sponge mop or chemical spray device or by immersion so as to thoroughly wet all surfaces

It eliminates algae by covering the top of the media

meaning you can relax safe in the knowledge that your plants are going to be just fine and remain nice

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack cube rapid vegetative growthImportant 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,