16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack new-releases the product is very light

the product is very light and has excellent physical qualities for use in plant propagation

Recommended for use with: Phresh & Black Ops Carbon Filters

Siphon Mixer (1:15 ratio): 2–4 fl

so light spreads broadly and evenly

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack new-releases the product is very lightImportant 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,