Standard Size #649R6 Register Boxes are lined with 1½" Ductliner to provide an R-Factor of R-6. The #649R6 Register Box is 9" Tall without collar.
| M&M Manufacturing Co. | |
|---|---|
| Product Category | HVAC Ductwork |
| Product Number | 649R6684 |
| Product Name | #649R6 Register Box 9" Tall wo/Collar |
| Application | Commercial |
