28x34x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack fluorescent-lighting A few of the upgrades

A few of the upgrades include an automatic relight ignition in case of ignition failure

to protect your HVAC unit and provide cleaner air

this results in denser fruit and flower sets all over the plant increasing yeild as much as 10%

Use it all season long to prevent and control powdery mildew

28x34x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack fluorescent-lighting A few of the upgradesNordic Pure Custom MERV 10 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