18x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack covid-19 GENERAL MASON BEE INFORMATION: Mason

GENERAL MASON BEE INFORMATION: Mason Bees are often referred to as solitary bees because they do not have a social order like honey bees and bumble bees

Available in an array of industrial strength sizes

Made to fit comfortably in your hand for on-the-go testing

Refer to the manufacturer's label (DOCS tab) for full crop-specific rates and timing

Its effectiveness on targeted insects and mites is based on the multiple modes of action it offers: it works as a suffocant on contact

18x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack covid-19 GENERAL MASON BEE INFORMATION: MasonNordic Pure Custom MERV 10 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