22x24_1/4x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack bio-organic fertilizer 6' (2 m) standard cable

6' (2 m) standard cable included

Liquid pH adjuster with proprietary formulation that offers superior pH control

Reduce the application interval to 3-5 days if insects get out of hand

Lowest height profile DE on the market

The HI 97500 features a low battery indicator and automatic shut-off feature that turns the meter off after 7 minutes of non-use

22x24_1/4x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack bio-organic fertilizer 6' (2 m) standard cableNordic 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