9x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete-systems “Special Hydroponics Formula”

“Special Hydroponics Formula”

4 RAW Calcium/Mag - 2 oz

After ingesting the bait

Daisy chainable—run 4 fixtures from a single outlet

they stop feeding almost immediately and die within 3 to 6 days

9x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete-systems “Special Hydroponics Formula”Nordic 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