15x17x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting Calcium Nitrate

Calcium Nitrate

Auto-Off function conserves battery power

*Recommend introducing Far Red light for 15mins after day cycle

- Compatible with 6"" PotPro Pots

The dying insect will change color to pink or brown and its body cavity will fill with a white fungal mass

15x17x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting Calcium NitrateNordic Pure Custom MERV 8 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