Grill HL-RB Air Return

Grill HL-RB Air Return for air return in clean room with turbulent air flow and mounted prefilters and fine filters

Air tight for filters
48 mm thick
Connect on on
the top or the side



  •  Application: extraction with filter(s), coarse and/or fine, for cleanrooms with turbulent airflow
  • Galvanized steel RAL 9010 powder coating
  • Top or side connection
  • Factory pre-assembled plenum and filter support
  • Disassembly on site possible
  • Sealable on site
  • For 48mm thick filters
  • Measuring nipples mounted
  • Perforated grid
  • Grate can be opened/closed without tool



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