13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Emitters Made from strong and durable

Made from strong and durable vinyl material

20 lbs treats up to 7

Item # Description Product Dimension Net Lbs Box Dimension Gross lbs CS/QTY UG-GS1000/DE/E UltraGrow – 1

Delivering 21

which prevents jamming

13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Emitters Made from strong and durableNordic Pure Custom MERV 13 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