17_1/4x23_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack -monitors-&-timers This Professional Precision Trimmer Kit

This Professional Precision Trimmer Kit (HGPP400K) combines 12 pairs of Hydrofarm Precision Pruners

It does not affect any beneficial bacteria within the soil or in your garden

16’ or 20’ lengths

Place the probe in the solution and wait until it is calibrated

Diameter 14

17_1/4x23_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack -monitors-&-timers This Professional Precision Trimmer KitNordic 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