The transition box, also called return air box, is made of 0.6mm galvanized steel plate. The spigot is connected to the air duct, and the opening of the box body is connected to the air grille. 5mm black insulation can be attached inside the box. Due to the large volume of finished products, semi-finished products can be provided according to customer needs, which will reduce transportation costs. Customized sizes are acceptable.
Item | A-A | H |
MD-24 150 | Φ147 | 250 |
MD-24 150 | Φ197 | 300 |
MD-24 150 | Φ247 | 360 |
MD-24 150 | Φ297 | 360 |
MD-24 150 | Φ347 | 360 |
MD-24 150 | Φ397 | 420 |
MD-24 150 | Φ447 | 420 |

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