The latest innovation from Grundfos is the CMB series of extremely efficient automatic pressure pumps for household and light industrial water pressure supply. Horizontal multistage pumps that are extremely quiet, all metal parts that come in contact with water are made from stainless steel. On/Off control is provided by the heavy duty pressure switch (which is adjustable) and the standard 18L Grundfos accumulator tank. The CM-PS5-6 version supplies a flow rate of 82 litres per minute at 450 kPa which is more than enough for the largest home with 2 or 3 levels and up to 4 showers at one time. This unit can also be used for irrigation, washdown or many other applications where a high flow at a higher pressure is required. This is the pump & pressure switch only version which has a 2-year warranty. One of the warranty terms is that the pump needs to be installed in a building or under a pump cover and off the ground. Delivery additional. This unit does not have run-dry protection. Click here for the pdf spec sheet.