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Plenum box made of high quality galvanized sheet of required gauge and 50mm spigot as standard. Insulation of required thickness and density as well as butterfly damper are available as options.
| MODEL | FLANGE | INSULATION OPTIONS MATERIAL | INSULATION OPTIONS THICKNESS | INSULATION OPTIONS DENSITY | ACCESSORIES |
|---|---|---|---|---|---|
| APB | 25 mm | Fibre Glass | 25 | 24 | Butterfly |
| 50 mm | Nitrile Rubber | 50 | 48 | Damper |
*Required: Neck Size, Quantity and RAL Colour Code along with above specifications.
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