Models View all ROTO - RoDrink, water tanks 6 11 0 ROTO - RoSeptic, 3-chamber septic tank 3 12 0 ROTO - RoSeptic 2-chamber septic tank 3 12 0 ROTO - RoPump DN800 7 24 0 ROTO - RoPump DN600 6 18 0 ROTO - EcoBlue waste water treatment plant 2 10 0