28x32x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack ac-dehumidification-humidification Three measurements

Three measurements

Included with each DL Speedy Matte Black Bill Counter is an operation manual

Helps improve flowering and bloom development

aluminum top and bottom

28x32x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack ac-dehumidification-humidification Three measurementsNordic 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