16_1/4x21_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack spl_luxx This press has the best

This press has the best of both worlds

2W±5%@AC240V 439

they won’t release any additional minerals into your plant's nutrient stream

• Catalyst to chlorophyll formation

16_1/4x21_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack spl_luxx This press has the bestNordic 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