20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 12 Air Filters 2 Pack dupe The Autopilot PX1 Digital Lighting

The Autopilot PX1 Digital Lighting Controller from Hydrofarm provides centralized

Add more potting soil until it is level all around  your plants

• Rack Mounting

The reach-through mesh design reduces damage to crops and makes harvesting easier

A low-profile design allows the unit to fit in applications with a limited height clearance

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 12 Air Filters 2 Pack dupe The Autopilot PX1 Digital LightingImportant 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,