These are DN 450 shaft rings with top and bottom shift locks, heights of 200, 300 and 600 mm with no outlet. Middle part with outlets for DN 150 with or without reducers, for DN 200 with or without reducers. Option of an odour-proof seal. Respects the ČSN EN 1917 standard.

Advantages:

• Street gully structure
• Street gully outlet
• Odour-proof seal
• Strength 40 MPa
• exposure class xF4