Also is available in the following executions:
SLT-N: Without external flange. For secret fixing in gypsum board with thickness 12 mm cutted in 45o corner.
SLT-C: With narrow external flange, for installation in gypsum board with thickness different of 12 mm.
SLT-C-P:With narrow external flange, for installation in gypsum board with thickness 12 mm.
SLT-X: Without main blade. (for return air).
SLT-SX: With perforated equalising grid.
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