20x22_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Growing Accessories Effective in warm climates

Effective in warm climates

Coconut coir is made from the fiber of coconut husks and is an alternative to peat-based medias

Whether you are starting seedlings

multiple advanced light control functions and expanded device control capacity

The output range of 10% to 115% gives you fine-tuned dimming capability that most basic timers and controllers simply can't match

20x22_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Growing Accessories Effective in warm climatesNordic Pure Custom MERV 10 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