A small, low holdup automatic head which can be completely disassembled for easy cleaning or replacement of parts. Lower column joint and side arm for condenser are 24/40. Joint on takeoff arm is 28/11. The plunger guide is 19/38 and the 10/30 thermometer joint may be used with our 8314 product family thermometers. Plunger activation is accomplished with our 6590 electromagnetic coil. Order thermometer and coil separately.