8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Cone Filler * Water shortage alarm

* Water shortage alarm

while protecting plants from transplant-related shock

Internal Dimensions: (10

It tells you how good the carbon is

• lncludes: Double Ended 1000w EL lamp

8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Cone Filler * Water shortage alarmNordic Pure Custom MERV 10 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