20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack DUCTWORK The PPH-2 probe is a

The PPH-2 probe is a commercially rated probe and it connects to the Aqua-x via the AMP-2

No rinse or wipe down is required

· Suitable for Organic Production

Like all products in the Harvest More line

MagFan ONe has the best air flow ratio of all the top 1% fans and it significantly outperforms the top 1% fans when it comes to capacity

20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack DUCTWORK The PPH-2 probe is aImportant 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 20x25x4 filter