22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Waterfall/utility pumps are multifunctional and

Waterfall/utility pumps are multifunctional and are ideal as utility pumps or to create streams and waterfalls in your backyard/garden pond

and calibration information

Less light deterioration

Because perlite is sterile

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 Waterfall/utility pumps are multifunctional andNordic 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