GRUNDFOS - Pressure Boosting - CONSTANT PRESSURE PUMP SCALA1 3-45 115 Constant Pressure Boosting - 99631742

The Grundfos SCALA1 3-45 Constant Pressure Booster Pump (99631742) is a compact all-in-one pressure boosting system designed to provide consistent water pressure for residential and light commercial water supply applications. Featuring a self-priming multistage pump, integrated pressure controller, variable-speed operation, Bluetooth® connectivity, and advanced dry-run protection, the SCALA1 automatically adjusts performance to match household demand. Capable of lifting water from depths up to 26 ft (8 m) and delivering up to 150 ft of head, it is ideal for municipal water boosting, rainwater harvesting, and shallow well systems. Its quiet operation and maintenance-free design make it a reliable solution for modern pressure boosting applications.

Cross References
Grundfos — 99631742
Grundfos — SCALA1 3-45
Grundfos — SCALA1 3-45 115V

Usage

The Grundfos SCALA1 3-45 is used to boost water pressure in residential homes, cottages, irrigation systems, rainwater harvesting installations, and shallow well applications. The integrated controller continuously monitors system pressure and automatically starts or stops the pump to maintain constant water pressure whenever fixtures are opened or closed. The self-priming design allows installation above or below the water source, making it suitable for municipal water boosting and private water supply systems. Bluetooth® connectivity through the Grundfos GO app enables advanced setup, monitoring, scheduling, and twin-pump configuration.