20x26x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack trays When we use chemical fertilizers

When we use chemical fertilizers

The long 9" wrist-covering length offers additional protection for the wrist and lower arm

The TMP-DNe can be set to either heat or cool

Use 1/16-1/4 tsp per gallon

boosting inlet pressure to 70 psi

20x26x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack trays When we use chemical fertilizersNordic 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