Retention tanks are covered, underground watertight tanks with an outlet, used to retain rainwater for further use, such as watering, for technical purpose or without any use with a controlled outlet option.
Alfa MODUL tanks are covered, underground watertight tanks with an outlet, used to retain rainwater for further use, such as watering, for technical purpose or without any use with a controlled outlet option.
Alfa MODUL tanks are covered, underground watertight tanks with an outlet, used to retain rainwater for further use, such as watering, for technical purpose or without any use with a controlled outlet option.