14_1/2x19x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack flowering nutrients Hydrofarm's Powerhouse convertible ballasts feature

Hydrofarm's Powerhouse convertible ballasts feature engineered transformers made to the exacting American National Standards Institute specifications

*Trim Rate:9 lbs

Sealed seams to prevent air leaks

Fall Webworm

14_1/2x19x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack flowering nutrients Hydrofarm's Powerhouse convertible ballasts featureNordic 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