28x28x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete-systems (1 tsp is approximately 44

(1 tsp is approximately 44 tsp/44 gal water/acre) – Recommended for preventative treatments before signs of infestation

Elastic closures on both ends of sleeves for snug

How much area does a 2x2

Standard Filling Device

Replacement Leaf Collector Motor for the Twister T2

28x28x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete-systems (1 tsp is approximately 44Nordic 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