Apparatus and installations for water supply, water distribution, water filtration, water purification and for sanitary purposes; apparatus and installations for water treatment; water conditioners and water conditioning systems; water pipes being plastic water pipes forming parts of water reticulation systems; filtration units for water treatment apparatus; wastewater treatment apparatus, installations and systems.

selection feature for regulating data calculation and data display in computer software programs for accounting and business management which incorporate spreadsheet and database management features