The Lambro FMD3-1225 flexible air duct provides a versatile path for distributing conditioned air throughout residential and commercial ventilation systems. Measuring 12 inches in diameter and extending up to 25 feet, this flexible core line is designed to navigate complex structural spaces where rigid sheet metal pipe cannot fit easily.
Engineered with built-in thermal insulation, this ducting solution helps control energy loss as air transfers from central climate units to individual rooms. The durable outer aluminized vapor barrier blocks humidity from entering the airstream, preventing condensation build-up when routed through unconditioned zones like crawlspaces, drop ceilings, or attics.
Prior to installation, professionals should evaluate system static pressure requirements and stretch the duct fully to ensure optimal air delivery. This flexible insulated duct facilitates smooth connections between main supply plenums and branch runs. Proper securing with tension straps or duct tape ensures airtight connections for a balanced, quiet airflow distribution.
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