13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Emitters without which the insect cannot

without which the insect cannot mature into its next growth stage and will

Item # Description Product Dimension Net Lbs Box Dimension Gross lbs CS/QTY ES-GS1000/DE/PLUS EnergyStation – 1

Made from strong and durable vinyl material

and enhancement of the microbial population in the growing medium

· Large footprint with even light distribution

13x21_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Emitters without which the insect cannotNordic 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