Stratus Eggcrate Return Filter Grilles:
- 20" x 20" Square Duct Transition
- T-grid, Lay-In; Overall Size: 23 ¾” x 23 ¾”
- ½” x ½” x ½” Cubed Core
- Filter Size: 20” x 20” x 1” (measuring 19 ½” x 19 ½” x ?” or less)
- Composition: Engineered Polymers, Stainless Steel Screws
- Colors: White & Black, Custom colors with minimum order quantity
- Fire Rated UL2043 available
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