Colt 1UL is a single bank louvre system designed for screening or cladding applications where rain defence is not a primary concern. It is available with a shallow (50 mm), medium (75mm) or deep (100 mm) blade pitch to suit project needs. The roll-formed design ensures high airflow with minimal pressure drop and is ideal for use on plant rooms, rooftop enclosures, or car parks. For improved rain protection, consider using Colt 2UL or 3UL.