13x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack pest control Quite simply

Quite simply

Both pH-balancing aids are manufactured using the highest-quality ingredients: potassium hydroxide to raise pH and nitric acid to lower pH

where they hatch and begin feeding on the whitefly

*Use with any other Biobizz products or Try-Packs to maximize crops and minimize costs

Though it is value priced

13x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack pest control Quite simplyNordic Pure Custom MERV 8 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