23_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack botanicare HLG BLACKBIRD is designed for

HLG BLACKBIRD is designed for home grows and is perfect for 4x4 grow tents

and microphones

promotes short inter-nodal spacing

Tribus Original is a highly concentrated liquid biostimulant containing three naturally occurring rhizobacteria (Bacillus subtilis

23_1/2x23_1/2x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack botanicare HLG BLACKBIRD is designed forNordic 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