Floor boxes are made of die cast aluminium, cover plate and brass screw cap. Available with Schuko or RJ45 jacks. Cover plate dimensions are 110 x 110 mm. The floor boxes are fully recessed flush with the floor. The screw cap can be replaced with a brass ring with rubber bushing type GRM, which produces an airtight connection for one output cable, from the front of the socket. If the entire box needs to satisfy IP65, the insert holes, which are suitable for conduit or SP-conduit with a diameter of 20 mm, must also be sealed around the conduit at the insertion point in the box.