15_1/4x15_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Hydroponics Large selection of sizes available

Large selection of sizes available to fit any application

This innovative powdered blend combines premium fertilizers with Biochar to create a simple to use formula that provides the soil nutrition necessary for large

- Chips-N-Fiber mixes the benefits of Cocopeat and Cocochip making it great for custom soil mixtures in smaller volumes

Superior liquid and particulate barrier

• 4 full spectrum

15_1/4x15_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Hydroponics Large selection of sizes availableNordic 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