20x25x5 1/4 (5.25) Goodman/Carrier/Amana Replacement MERV 12 Air Filters 1 Pack rockwool Produces more spectral balance for

Produces more spectral balance for increased plant response and accelerated growth

Hydrofarm's desktop plant light offers illumination and versatility for indoor growing

the reflector is now clipped on the ballast housing itself

100% of the filter surface area is used

20x25x5 1/4 (5.25) Goodman/Carrier/Amana Replacement MERV 12 Air Filters 1 Pack rockwool Produces more spectral balance forImportant 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 4 7 8 inch depth filters,