16_1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords This high-quality coir is processed

This high-quality coir is processed indoors to eliminate debris and pollutants

Oregano Thyme

up to 3-4x stronger than General Hydroponics

Works great with Plantmax 315W CMH PGZX18

With our photo filter

16_1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords This high-quality coir is processedNordic 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