External sewage system Polytron Terra External pipe DN 110 Polytron Terra External pipe DN 160 Polytron Terra External pipe DN 200 Polytron Terra Double coupling Polytron Terra Repair coupling Polytron Terra Bend 15° Polytron Terra Bend 30° Polytron Terra Bend 45° Polytron Terra Bend 87,5° Polytron Terra Eccentric reducer Polytron Terra Tee 45° Polytron Terra Tee 87,5° Polytron Terra Tee reducer 45° Polytron Terra Tee reducer 87,5° Polytron Terra Single-plane crosspiece 87,5° Polytron Terra Single-plane crosspiece 45° Polytron Terra Cleanout Polytron Terra Check valve Polytron Terra M.O.L. sealing ring for outdoor sewage Polytron Terra Plug Polytron Terra
