Inta 15DOT 1/2" BSP 15mm Radiator Valve Drain Off Tail Piece Adapter in Chrome
Inta 1/2" BSP Drain Off Tail 15DOT. Will not fit 3/4" BSP Threads (1" act). Drain Off for use in place of a standard radiator tail to provide drain off capability to a standard, or Thermostatic radiator valve.