Grundfos CM Basic Domestic Pressure Boosting Pump

Product Code: N/A

Grundfos CM Booster Fixed Speed Pressure Pump 240v

The Grundfos CMBasic is a compact booster pump designed for domestic and light industrial use. The booster unit consists of a Grundfos CM cast iron pump with stainless steel hydraulic components and PM1 Pressure Manager. The Pressure Manager allows the pump to start and stop automatically according to demand and protects the pump from dry running. The pump includes 1.2m cable with plug.

The Grundfos CM Booster with pressure manager PM1 is a compact booster set for water supply in domestic applications.

The pressure booster unit consists of a Grundfos CM pump and a Grundfos pressure manager PM1. The pressure manager allows the pump to start and stop automatically according to demand and protects the pump from dry running.

The CM Booster is very easy to install. When the booster has been connected to the pipework, it is all a matter of plugging the plug into a socket, and the system is operational.


  • Mains water boosting
  • Rainwater supply from above ground water tanks
  • Household water supply
  • Light industrial use


  • Robust Design 
    All moving parts are made from high quality, corrosion resistant stainless steel to ensure the longest life possible.
  • User-friendly interface
    The pump features a user-friendly interface with LED indicators displaying power status, pump running, and alarm indication.
  • Protective features
    The pump incorporates a range of protective features such as dry run protection, thermal overload protection, cycling alarm and maximum continuous operation time – 30 mins (excluding CMBasic 1-36) to protect the pump and ensure a long life.
  • Easy installation
    The booster unit is a compact solution, which makes it suitable for most installations. Simply connect the inlet and outlet and you have a fully operational booster unit.
  • Integrated non-return valve
    Non-return valve for backflow prevention.


  • Power on indication
  • Pump running indication
  • Alarm indication
  • Dry-running protection
  • Free position in installation
  • Suitable for generator supply
  • Rotary outlet connection
  • Integrated non-return valve
  • Cycling alarm


All Grundfos products come with a 2-year warranty that fully complies with legal requirements.

The warranty covers product and material defects which are not the results of normal wear and tear for a period of 24 months from the date of delivery. The warranty period may not, however, exceed 30 months from the date of production.

Warranty claims will be rejected in the following situations:

If the defect in the product arises from:

  • any drawing, design or specification supplied by the customer/purchaser
  • modifications undertaken by the customer/purchaser or a third party without the consent of Grundfos

If a defect is caused by:

  • normal wear and tear
  • inadequate maintenance or faulty repair by others than Grundfos
  • failure to observe the operating instructions
  • over-loading
  • use of any unsuitable material
  • the effects of chemical or electrolytic action
  • building or assembly work not undertaken by Grundfos
  • other reasons beyond Grundfos’ control.

As a general rule, Grundfos will not accept to pay transportation/replacement/installation costs for faulty products.


Model NumberModel Name
‘97530097Grundfos CMBasic CMB1-36 Pump 0.5kW
‘97530133Grundfos CMBasic CMB3-37 Pump 0.5kW
97530169Grundfos CMBasic CMB5-46 Pump 0.9kW


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