Angle sound attenuator for rectangular ducts

LENTO is, due to its unique design with connection facing the side splitters, suitable for use both in ducts and in direct connection to the air handling unit.

  • Very compact rectangular attenuator
  • Excellent aerodynamic characteristics
  • Very low pressure drop – splitters function as trim rails
  • Environmentally friendly acoustic material, approved by independent test institute: ISOVER Cleantec® PLUS
  • Can be supplied with inspection hatch
  • Fire protected version with 50 mm mineral wool also available
  • Washable surface layer ISOVER Cleantec® PLUS
  • Connection dimensions from 400 x 300 to 2000 x 2000


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Article Name Type Size Date Add to bucket
Page < 1 >
ISOVER Cleantec PLUS  Approval 2706/92, Duct insulation Declarations 3.06MB 11/13/2017 Add to bucket
LENTO  Angle sound attenuator for rectangular ducts Catalogue/Product sheets 490.43kB 11/8/2017 Add to bucket
LENTO  Building product declaration Declarations 178.66kB 1/10/2009 Add to bucket
MORENDO, CALMO, CADENZA, LARGO, LENTO  Installation, commissioning, maintenance Instructions/Manuals 99.64kB 11/8/2017 Add to bucket