20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 1 Pack Trimming Shears Most standard PK boosters are

Most standard PK boosters are structured

Highly flexible – can be applied in standard foliar spray applications or in tank mixes

the Stealth-RO150 produces 150 GPD of ultra-pure water

60ml Amber glass tincture dropping bottle with graduation - BLACK CAP ONLY

Highest quality precision cutting instrument

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 1 Pack Trimming Shears Most standard PK boosters areImportant 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,