16x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Trimmers Total Weight: 50 lbs (2

Total Weight: 50 lbs (2 x 25 lb drums)

Pests can’t build immunity to it

10 Million: up to 3

1 ML per gallon will treat 946 Liters (250 gallons US) of nutrient solution

it is also toxic to bees

16x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Trimmers Total Weight: 50 lbs (2Nordic Pure Custom MERV 10 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