17_3/8x35x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_dakine420 The HI98115 is supplied complete

The HI98115 is supplied complete with a carrying case and calibration solutions

(It is NOT recommended to foliar spray Kelp during bloom/flowering stages

Because Roundup shouldn't be your only option

We recommend that you change your AC air filter every 3 to 6 months

40% Water Soluble Magnesium

17_3/8x35x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_dakine420 The HI98115 is supplied completeNordic 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