20x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack harvest-solution full-size dimensions and volume to

full-size dimensions and volume to provide maximum growing area

We are happy to help you determine the correct size that you need

With UV-C technology it is possible to destroy more than 99

which are natural wetting agents

20x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack harvest-solution full-size dimensions and volume toNordic 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