The PM45A is a peripheral turbine pump for small household systems and simple industrial applications. Complete with Presscontrol wired and ready to go. The Presscontrol will automatically turn the pump on and off when an outlet is opened and closed. In the case of no water to protect the pump from dry running it will switch off. Pump casing and motor bracket made from bronze. Brass impeller. Stainless steel shaft.PM-45A 110v Automatic electronically controlled single end pump. For hot or cold pressure boosting. 1" female thread on pump inlet, 1" male outlet thread on presscontrol unit. Max flow 40 litres per minute, maximum pressure 4 bar. Switches on when an outlet is opened and switches off in approx 6-8 seconds when outlet is shut. Also has the feature of dry run protection.