T/L-A-T/L - Triple Lock Acoustic Duct

This insulated acoustic air duct, T/L-A-T/L is manufactured by using a dead soft aluminum strip which is perforated, spirally wound and mechanically joined together. The inner duct is covered with thick fiberglass insulation and sleeved by a triple-lock aluminum jacket. T/L-A-T/L relies on the perforated core with an open area of 20-25% to create a duct with superb acoustic qualities. The complete high pressure duct assembly is excellent for those HVAC systems requiring low noise.