17_1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack discounted Packaging Dimensions: 156mm(L) x 83mm(W)

Packaging Dimensions: 156mm(L) x 83mm(W) x 30mm(H)

Ignitors are components inside magnetic ballasts

B'Cuzz Blossom Builder Tabzz are packed light-tight

Micro sizes

Bloom and Boost can be used to grow an extremely wide variety of plants

17_1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack discounted Packaging Dimensions: 156mm(L) x 83mm(W)Nordic Pure Custom MERV 7 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