Duo-20 Double softener cabinet These fully automated, quantity-controlled, mechanical twin water softening systems in cabinet version are optimally suited upstream of reverse osmosis systems. With their current-free operation they offer continuous availability of soft water with low salt and water consumption. For regeneration soft water is used, and thanks to its synthetic components the system is non-corroding. The different models can detect even small volume flows (LF model series – low flow nozzle from 0.19 L/min), therefore, undesired hardness irruptions are prevented. The small-footprint cabinet comprises two resin tanks with a common controller head, the desalination valve with sheath as well as a sieve bottom for the salt charge. Please note: DUO 10 and DUO 20 have identical capacities because the same amount of resin will be used. These systems differ with regard to the system design and the salt charge involved. Also well suited for installation underneath a desk or table. Type: DUO-20 Flow rate: max. 19 l/min Flow rate: min.  2 l/min Regeneration Salt consumption / regeneration: 0.45 kg Regeneration time: 11 min Water consumption: 19 l Back wash: 2.65 l/min Technical Data Resin charge: 2 x 4.5 l Salt storage capacity: 18 kg Feed water pressure: 1,0 - 8.6 bar Connection size feed / soft water: 3/4'' Temperature min/max: 2 - 65°C Dimension Height: 560 mm Width: 360 mm Depth: 360 mm Weight: 27 kg Capacity values Hardness      Hardness zone     available soft disc               °dH up to              water quantity 1                       4                         2207 2                       8                         1103 3                     11                           736 4                     15                           552 5                     19                           441 6                     23                           368 7                     27                           315 8                     30                           276 Duo-20 Double softener cabinet These fully automated, quantity-controlled, mechanical twin water softening systems in cabinet version are optimally suited upstream of reverse osmosis systems. With their current-free operation they offer continuous availability of soft water with low salt and water consumption. For regeneration soft water is used, and thanks to its synthetic components the system is non-corroding. The different models can detect even small volume flows (LF model series – low flow nozzle from 0.19 L/min), therefore, undesired hardness irruptions are prevented. The small-footprint cabinet comprises two resin tanks with a common controller head, the desalination valve with sheath as well as a sieve bottom for the salt charge. Please note: DUO 10 and DUO 20 have identical capacities because the same amount of resin will be used. These systems differ with regard to the system design and the salt charge involved. Also well suited for installation underneath a desk or table. Type: DUO-20 Flow rate: max. 19 l/min Flow rate: min.  2 l/min Regeneration Salt consumption / regeneration: 0.45 kg Regeneration time: 11 min Water consumption: 19 l Back wash: 2.65 l/min Technical Data Resin charge: 2 x 4.5 l Salt storage capacity: 18 kg Feed water pressure: 1,0 - 8.6 bar Connection size feed / soft water: 3/4'' Temperature min/max: 2 - 65°C Dimension Height: 560 mm Width: 360 mm Depth: 360 mm Weight: 27 kg Capacity values Hardness      Hardness zone     available soft disc               °dH up to              water quantity 1                       4                         2207 2                       8                         1103 3                     11                           736 4                     15                           552 5                     19                           441 6                     23                           368 7                     27                           315 8                     30                           276