The Stuart Turner Pulse Trade 25/60-130 Circulator features a robust cast iron pump housing and is ideal for the transfer of liquid within systems for hot-water heating, air-conditioning and ventilation. This circulator features variable speed controls to constantly measure pressure and flow and adjust the speed according to the set operating mode. The trade circulator is suitable for underfloor heating, pre-plumbed cylinder and boiler applications.   Automatic adapt, proportional pressure, constant pressure and constant speed operating modes Automatic night setback ECM permanent magnet technology Power range can be converted from 4m to 6m Robust cast iron housing Comes complete with insulation shell 1.3m cable included with connection plug G 1½ threaded connection ErP compliant Built-in over-current, temperature and overvoltage protection LED display control panel Anti-lock function Set in fixed speed 3 from start up. Stuart Turner Pulse Trade 25/60-130 Domestic Circulating Pump