Air Bear 16x25x5 (4 7/8) Replacement 255649-105 MERV 8 Air Filters 2 Pack AIR FILTER BOXES Galvanized Jack Chain is a

Galvanized Jack Chain is a universal item which has many uses within a greenhouse

Four-mode dimming

Aerodynamic design allowing more air flow

If you have a ventilation system

Use the Hydrologic reverse osmosis water filter Float Valve 20+ GPM for Big Boy or Delivery Pump to customize your indoor hydroponic garden

Air Bear 16x25x5 (4 7/8) Replacement 255649-105 MERV 8 Air Filters 2 Pack AIR FILTER BOXES Galvanized Jack Chain 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. We also carry 4 3 8 and 5 1 4 inch depth filters,