Pay in 4 interest-free payments of $8.75 Learn more
Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
General Releases - 5-10 mites per sq
rock powders and micronized leonardite
Never before has there been a pH controller with these features for this value
The Autopilot Cumulus S50 Digital CO2 Controller measures and controls grow room carbon dioxide levels with great precision
Potassium Nitrate
20x20x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack Light Fixture General Releases - 5-10 mitesImportant 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. If you are replacing a 4 3 8 depth 20x20x4 filter
