16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_luxx The tumbler brush fits the

The tumbler brush fits the Twister T2 and all older models

The motor houses dual-ball bearings that are rated at 67

Platinium HydroStone can be utilized for growing in both rockwool cubes and square pots

Root bound pots can be fed 1 to 6 times a day (depending on size of plant and size of container it is in)

99 THD: <10% Crest Factor: <1

16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack spl_luxx The tumbler brush fits theImportant 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 16x20x4 filter