21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos Nymphal feeding focuses on eggs

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

Try it out with one of our Dutchpro starter packs

Release the emerged adults within 18 hours of receipt

Freight charges apply

We are proud to bring you the next in the FloraFlex® Nutrients line: an easy to use spray formula for the Vegetative stage

21x27x1 Trane Replacement MERV 12 Plus Carbon AC Furnace Filters 6 Pack books-&-videos Nymphal feeding focuses on eggsNordic 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