The Grundfos CM Booster 3-37 is a multistage pressure pump of stainless steel and cast iron construction of all wetted parts. This pump is suitable for single storey homes with above ground tanks. The CM Booster 3-37 is fitted with a PM 1 pressure controller which allows the pump to start and stop automatically according to demand and will also protect the pump by turning it off if your tank has run out of water. If you have an application where the house is more than single storey or there is 3 metres or more of vertical lift from the pump to the house a then a Grundfos CMB-SP would be a better choice.
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2 year warranty