 
                        
                                        Galvanized steel provides excellent corrosion resistance and longevity.
                                        
Filter rack factory installed.
                                        
Collars sealed with UL approved sealant.
                                        
Box opening 1/4" oversized to accommodate register grilles.
                                        
Flange base provides a solid fastening surface.
                                        
Long galvanized collar allows for an easy union to other components.
                                    

                                        MHR: Mobile home return box 9.25" tall.
                                        
MHRS: Mobile home return box 4.50" tall.
                                    
| Part No. | Size | Quantity | 
|---|---|---|
| MHR122012 | 12" x 20" x 12" | 1 | 
| MHR141410 | 14" x 14" x 10" | 1 | 
| MHR141412 | 14" x 14" x 12" | 1 | 
| MHR142012 | 14" x 20" x 12" | 1 | 
| MHR142014 | 14" x 20" x 14" | 1 |