17x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Telephone number: +34 91 562

Telephone number: +34 91 562 04 20

Whether you are a backyard greenhouse hobbyist or a professional commercial plant grower

Whether you are harvesting indoor

Sodium Na+ (ppm)

Designed exclusively for Hydrofarm by America's foremost lighting design engineers

17x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Telephone number: +34 91 562Nordic 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