18_1/4x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pump Thanks for purchasing our Pollen

Thanks for purchasing our Pollen Tumbler

and automated trimmers

Soak seeds for 12 hours in the Dr

The louvered top effectively dissipates heat while operating DE bulbs at ideal temperatures for maximum light output and lamp life

18_1/4x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pump Thanks for purchasing our PollenNordic 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