16x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Treatment the shelves are made of

the shelves are made of aluminum alloy plate with good thermal conductivity

This product is OMRI listed

Height: 125 cm / 49

Specially formulated to give your plants exactly what they need to produce lush

0% Water Soluble Magnesium

16x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Treatment the shelves are made ofNordic 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