The Metal Zinc LLC DFP202030R6-1-1 20X20X30" R6 Dual Filter Plenum, a duct plenum designed to provide superior return air filtration. This plenum is made of galvanized steel with a 28 gauge thickness and R-6 insulation for maximum durability and efficiency. Here are the features of this product:
- Dual Filter
- Return Air
- 20 in WD
- 20 in HT
- 30 in LG