16x28x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Sprayers and Wands but in a controlled garden

but in a controlled garden environment this key element is often missing

Dimensions: 10” Diameter x 63” Height

The stakes (measured upright) are 4

They reliably warm the root zone to 10ºF-20ºF above ambient air temperature

16x28x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Sprayers and Wands but in a controlled gardenNordic Pure Custom MERV 7 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