22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Because perlite is sterile

Because perlite is sterile

Let compost or worm castings brew with EZ Tea Veg for 12 to 24 hours then apply to plants

Works great with Plantmax – 1

Ultra high capacity instant dechlorinator

Helps stimulate natural root growth and helps to increase the bloom set and size of flowers and fruit

22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Because perlite is sterileNordic 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