12x26_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning Because Terpinator is a neutral

Because Terpinator is a neutral pH

Active Ingredient: Ulocladium oudemansii (U3 strain) — 5 × 10⁸ CFU/g (minimum)

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The pHEP 5 includes a dual-level LCD

12x26_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack ventilation/air-conditioning Because Terpinator is a neutralNordic Pure Custom MERV 12 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