Nirmala Enterprises - The Grundfos SCALA2 is a fully integrated, self-priming, compact waterworks for pressure boosting in domestic applications, such as one and two-family houses and apartments. SCALA2 incorporates integrated speed control
How to dismantle and assemble Grundfos SCALA2 pumps - YouTube
For Grundfos SCALA2 Automatic Variable Frequency Booster Pump Household Pump - AliExpress
Grundfos SCALA2 3-45 Constant Pressure Boost Pump - 230V – US Water Systems