21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow1 5' Steel Stake overflow extensions and debris screens

overflow extensions and debris screens easily slip into outlets

The Day/Night Fan Speed Controller by LTL Controls is a simple and affordable way to control your fan

Each smart controller includes a 12 ft

Plug-and-Play Ready – Comes complete with power supply and all mounting hardware for immediate deployment

Tomato Hornworm (Manduca quinquemaculata)

21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow1 5' Steel Stake overflow extensions and debris screensNordic Pure Custom MERV 13 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition