13x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Controllers Product Note: Do not apply

Product Note: Do not apply to sensitive plant species such as poinsettias

It's safe for humans

The Phantom is also the only ballast on the market designed for vertical or horizontal operation

• Use on medical and hemp

sediment filter

13x23x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Controllers Product Note: Do not applyNordic 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