17_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack lighting-accessories 15’ heavy duty 14 gauge

15’ heavy duty 14 gauge extension cord

Spray application is suggested for those diseases affecting leaves

All Nordic Pure pleated HVAC filters are manufactured using a heavy duty

Prevents stratification of grow room air

It uses professional grade aluminum that resists most conditions including extreme temperatures

17_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack lighting-accessories 15’ heavy duty 14 gaugeNordic 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