500-series Normal 3366186-N is floating type, squared frame for non-lockable, round blind cover 3366032-N or grating 3366033-N. The frame is designed for Nordic conditions, in accordance with standard EN 124-2:2015, manufactured from ductile iron EN-GJS-500/7 and is classified under Load Class D400.

The frame assembly is compatible with DN500 mm telescope pipe.

Typical applications are inners streets, car parks, pedestrian zones which are covered by paving stones.