8.75 x 18 x 0.75 Exact Size Air Filter spl_hgc Safe for use in irrigation

Safe for use in irrigation systems

NOTE: Emergence holes are evident under significant magnification after Trichogramma have hatched

Since there’s no need for spot checks or manual adjustments

At Big Foot

VermiFire performs above and beyond the call of duty

8.75 x 18 x 0.75 Exact Size Air Filter spl_hgc Safe for use in irrigationNordic 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