16_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Monterey Lawn & Garden Products QUANTUM PAR METER

QUANTUM PAR METER

FoxFarm's fast-acting

Built with the home theater and AV market in mind

then water in the NemaSeek for complementary control of pests in your soil

The granules expand instantly when hydrated

16_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Monterey Lawn & Garden Products QUANTUM PAR METERNordic 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