10x12x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases HI50021P is a premium quality

HI50021P is a premium quality calibration check solution used exclusively for the HI9813-6 portable pH/EC/TDS/Temp

store and sell with only one cut at harvest

be sure to monitor PPM and pH after adding

63Cell depth (inches): 3

8' grounded power cord

10x12x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack new-releases HI50021P is a premium qualityNordic Pure Custom MERV 7 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