16x18x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Cleaning Products Use the adjustable socket rings

Use the adjustable socket rings to slide the bulbs into perfect position for any size area

A high-quality tool kit is provided with the purchase of the CenturionPro® Tabletop Pro

a full 15 times stronger than the original GreenFuse dilution rate of 1

They become brittle

as well as to encourage a plant to shift its hormonal signals from vegetative to flowering

16x18x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Cleaning Products Use the adjustable socket ringsNordic 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