The access panel B4 model consists of a solid outer frame and a hatch, made of galvanized sheet steel with integrated profile cylinder lock. The standard colour is white - RAL9016. The profile of the outer frame is chamfered. Therefore, the hatch is fixed flush with surfaces made of plaster or gypsum. The four riveted wall anchors ensure a safe installation in walls or ceilings. The door leaf is removable and suitable for left-hinged and righthinged doors. The access panel can be locked with a profile cylinder lock (profile cylinder provided by customer). Sheet steel access panels can be installed in partitions and ceilings. Dimensions: Customized sizes can be produced in every dimension upon enquiry.