MONSOON UNIVERSAL U4.5 BAR SINGLE

Boosting water pressure within gravity fed domestic systems.

  • Suitable for positive or negative head applications
  • Premium quality brass pump supplied with anti-vibration hoses
  • Very quiet operation
  • Continuously rated
  • Anti-vibration feet
  • EPDM/PTFE/Al. Oxide seal
  • Pre-wired with 1.5 metre power cable
  • WRAS-approved product
  • Kiwa KUKreg4 certified
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Product specification

Product codeProduct codes for the UK and Ireland models46414
GeneralGTIN5050400464143
Warranty5 years (subject to conditions)
WRASWRAS-approved product
KiwaKUKreg4 certified
Conformity certificationUKCA | CE
FeaturesPump typePeripheral
Pump controlPressure & Flow Switch
Mechanical sealEPDM / PTFE / Al. Oxide
Anti-vibration feet
Inlet strainer(s)
Anti vibration hoses2
Run on timer3 seconds
Dry run protection
Typical noise55 dB(A)
CONSTRUCTION
Enclosure protectionIPX4
Pump bodyBrass
ImpellerBrass
PERFORMANCE
Maximum head - closed valve4.5 bar / 45 metres
Performance @ 9 l/min3.5 bar
Performance @ 18 l/min1.7 bar
Maximum flow26 l/min
Maximum static inlet pressure12 metres
Maximum static outlet pressure12 metres
Maximum working pressure*600 kPa / 6 bar
Maximum ambient air temperature40 °C
Min / Max water temperature**Min 4 °C / Max 65 °C
Flow switch sensitivity0.6 l/min (approx)
Pressure vessel air pre-charge1.3 bar / 18.5 psi
CONNECTIONS
Pump connections (Inlet)G ¾ M
Pump connections (Outlet)G ¾ M
ANTI-VIBRATION HOSES
Connections (Export model) G ¾ F x G ¾ F 300 mm long
MOTOR
TypeInduction, auto-reset thermal trip
Duty ratingContinuous (S1) @ 9 l/min and above***
ELECTRICAL
Power supply (Vac/Ph/Hz)230 V a.c. / 1 / 50 Hz
Power consumption - P1555 watts
Current - full load2.5 amps
Fuse rating (amps)5 amps
Power cable length1.5 metres (pre-wired)
DIMENSIONS
Length200 mm
Width162 mm
Height - excluding hoses243 mm
Weight - including fittings7.3 Kg
More information

The Monsoon Universal Single Shower Pump is designed for homes with vented water systems, where water is stored in a tank and cylinder rather than supplied directly from the mains.

What sets the Universal range apart is its ability to operate in both positive and negative head applications. This means it can perform reliably even when the outlet is positioned above the water source, or where pipework layouts make pressure less predictable.

Single pumps are ideal where only one water supply requires boosting — offering a practical solution for targeted pressure improvements in more challenging installations.

This model is not suitable for unvented or mains-pressure systems. If you’re unsure which setup you have, our wider pump range includes alternative options designed to suit different household systems and pressure requirements.