Revision door RDH for square pipe with CR EPDM type sealing. The design of the door and the positioning of the sealing profile ensures a high airtightness class. RDH provides a very simple and effective solution for closing and sealing access openings in ductwork. The openings created in the ductwork for the inspection door must be sized to meet the requirements of EN 12097.
Revision doors shall be installed in a pre-prepared opening with dimensions according to the template provided (included).