DN20 Break Tank Solenoid Filling Valve, for use with the BTAB and BTAF 700, 900, 3-5 and 3-7. The additional fittings allow for a straightforward replacement of an existing faulty Solenoid Valve. The assembly consists of the Solenoid Valve, Plug and Coil, Isolating Valve and Threaded Brass Elbow.