17_1/2x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack ventilation it is comparable to the

it is comparable to the leading premium ducting on the market

Sachets have a different shipment schedule and processing time than other sizes

ReadyGro is a premium blend of select

The original Max Yield Bin features a flat top for maximizing usable space in your grow environment

17_1/2x27x1 Trane Replacement MERV 8 Plus Carbon AC Furnace Filters 6 Pack ventilation it is comparable to theNordic Pure Trane Replacement 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