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- Castellated Starting Collars
Castellated Starting Collars
Castellated Starting Collars are suitable for attachment of flexible duct to sheet metal box or pre-insulated duct board. Manufactured from galvanised sheet metal.
- Available in a range of sizes from 150mm to 400mm diameter
- Also commonly referred to as a castellated spigot or castellated starting collar
Airflow - The HVAC Shop
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