21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos • Red spider mites

• Red spider mites

000 average rated life hours

Freight charges apply

The PX1 is designed to work with any Phantom or Hydrofarm ballasts with USB connectivity

Nymphal feeding focuses on eggs and immature larvae (instars) of fungus gnats in addition to pupal stages of thrips

21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos • Red spider mitesNordic Pure Trane Replacement MERV 12 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