21x23_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Emitters Containing dual-ball bearings rated at

Containing dual-ball bearings rated at 67

Hazmat Item - must be shipped on pallet

The combination of coir and perlite give Tropicoco Moisture Retaining the ability to hold water while still offering excellent drainage

and blue light while maintaining high CRI

* Adjustable Voltage

21x23_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Emitters Containing dual-ball bearings rated atNordic 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