12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack flowering 01 g accuracy

01 g accuracy

DEEP BREATH

Rhizoctonia

Ventilation holes on sides & bottom

Ebb & Flow Tub Outlet Fittings

12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack flowering 01 g accuracyNordic Pure Custom MERV 13 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