17_1/4x23_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements Private Reserve Vacuum Seal Bags

Private Reserve Vacuum Seal Bags

The added vitamin B2 boosts the plant’s natural defenses against pathogens and insects

Klebsiella pneumoniae (NDM-1)

(1) Plant Tester

17_1/4x23_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements Private Reserve Vacuum Seal BagsNordic 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