16x21_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack bloom nutrients Package Dimensions: 160mm(L) x 86mm(W)

Package Dimensions:              160mm(L) x 86mm(W) x 86mm(H)

a very capable supplemental light in large flower operations and the power to act as the main source offering a full spectrum in a small garden

Contains three dual-ball bearing blowers with PWM-controlled motors to minimize noise

Sold in a case of 32

Recommended for INDOOR use

16x21_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack bloom nutrients Package Dimensions: 160mm(L) x 86mm(W)Nordic Pure Custom MERV 8 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