20x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack spl_bfg Weight 21 lbs

Weight 21 lbs

Minerals also deposit onto the submerged portions of the electrodes rendering those areas ineffective

and comes with

Pressing either the probe icon in the Hanna Lab App or button on the HALO pH probe will tag sample data for easy reference

2 speed settings

20x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack spl_bfg Weight 21 lbsImportant 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