12_1/8x15x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack special-order Special alloy steel is heat

Special alloy steel is heat treated and tempered to produce an edge that stays sharp longer

Suggested Uses: Use through the growing cycle to boost root and plant health

Increase efficiency

high-impact ABS plastic with UV resistance for longevity

which work specifically against the grub stage of the Japanese beetle (Popilia japonica)

12_1/8x15x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack special-order Special alloy steel is heatNordic Pure Custom MERV 13 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