17_3/8x35x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Sungrower Trellis Netting 1000’ and Shorter • Improves root development

• Improves root development

the HydroGEN CO2 monitor uses indicator lights to show approximate CO2 levels

This is professional-grade nutrition built for results

Overall Length: 56-1/2"

• Weight without cartridge: 0

17_3/8x35x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Sungrower Trellis Netting 1000’ and Shorter • Improves root developmentNordic Pure Custom MERV 14 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