Pressed ventilation duct elbows dedicated for SPIRO ducts and regular ventilation ducts. Linear weld and double EPDM rubber gasket ensure class D insulation according to Eurovent standard in the entire ventilation and recuperation system. without additional sealing agents. To connect the elbow to the ventilation duct, slip it into the duct. Pressed form results in less resistance and lower pressure drop. Example identification Product code: BPDL- aaa - 90 Technical Data ALIMOR systemy wentylacji jest prawnie chronionym znakiem i technicznym patentem. Prawo do zmian zastrzezone