Self-Priming Booster Pump System Wilo MultiPress HMP 303 (Single-phase)
Self-Priming Booster Pump System Wilo MultiPress HMP 303 (Single-phase) is a compact multi-stage self-priming pump system featuring horizontal suction and vertical discharge. Powered by a single-phase motor with built-in thermal overload protection, the low-noise multi-stage centrifugal pump ensures smooth and dependable operation.
Key Features & Components:
50L Membrane Pressure Tank: Maintains stable water pressure and prevents water hammer in the system.
Automatic Control Units: Equipped with a precision pressure switch and a 0–6 bar pressure gauge for reliable system monitoring.
Corrosion-Resistant: All wetted components are constructed from high-grade, corrosion-resistant materials.
Plug & Play Installation: Supplied fully assembled and pre-wired with a 3-meter power cable and standard plug, ready for immediate connection.



