11_1/2x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack harvest-solution thrips (Thysanoptera)

thrips (Thysanoptera)

Europonic Rockwool Conditioning Solution™ is an advanced formulation of ingredients that stabilizes and adjusts the pH of rockwool for maximum nutrient utilization by the plants

Cabbage Worm (Pieris rapae)

capacity and sold in cases of 432

Built-in defrost system engages at 32°F

11_1/2x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack harvest-solution thrips (Thysanoptera)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