Dezincification Brass version, O Ring, spindle seal. Memory stop by means of an external nut, threaded end connections BSP. DN 15 - DN 50: 2 bores 1/4 with screw plugs t 1 0273 09. 1 bore 1/4 with screw plugs 273. Handwheel position marker 1 6517 05 is included. Drain valve 0276 has to be ordered separately. Compression adapter: DN 15: Universal models with special sockets for threaded pipes and compression adapters. DN 20: Adapter 1 6266 20 and compression adapter G 3/4. Adapter and compression adapters have to be ordered separately.