21_1/2x23_3/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack harvest-solutions The Zenport Stem Clipper H324

The Zenport Stem Clipper H324 clementine

the most popular size for computers and DIY applications

at any stage of the plant's development

Use during your flush to help break down salts

Unlike any other brand on the market

21_1/2x23_3/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack harvest-solutions The Zenport Stem Clipper H324Nordic Pure Custom MERV 14 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