16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 4 Pack Tubing All 40 Series DE ballasts

All 40 Series DE ballasts are fully compatible with the Autopilot PX1 Digital Lighting Controller (APDPX1)

The detachable design of Octopus-XHB

Highly reflective and diffuse plastic microfiber seam tape

Size: 40'' x 20''

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 4 Pack Tubing All 40 Series DE ballastsImportant 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,