Brass distribution and control valve (stop valve construction) for heating line system. Plastic switch, MXF ... 3/4 inch or 1 inch MXF 3/4 inch or 1 inch main flow ... , 2-way or 3-way, 4-way distribution and control stop valve with plastic switch for heating ... 2 WAY, 3 WAY, 4 WAY options,Main flow DN20, DN25 and DN32Threaded main pipe connection size ...