17x29x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Liquid & Weight Measuring Insect feeding continues to slow

Insect feeding continues to slow until the pests die

and it allows the user to select a Day

This is important for knowing when to change the pre-filter for the Merlin Garden Pro

The revolutionary new Gavita CT 1930e is the first and only LED that is a direct replacement for HPS

The MP 1200w DE HPS is designed unambiguously for the most aggressive and confident heavy yielding producers who demand the highest quality and performance

17x29x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Liquid & Weight Measuring Insect feeding continues to slowNordic Pure Custom MERV 12 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