16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments pH Down™

pH Down™

This heavy duty pedestal fan is adjustable in height and utilizes a strong heavy base for stability

such as chemicals from household cleaning products

Good 2 Grow trays and reservoirs are both made of durable high-impact white ABS plastic with UV resistance for improved longevity

cantaloupe

16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments pH Down™Nordic 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