21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos PURCHASE OPTIONS:

PURCHASE OPTIONS:

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

Try it out with one of our Dutchpro starter packs

sold separately

Freight charges apply

21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos PURCHASE OPTIONS:Nordic 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