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1.5" BSP TO 0.125" BSP RIGHT HAND THREAD CAST IRON REDUCING BUSH or Bleeder End Cap for cast iron radiators

Plain Bleeder End Cap

Plain Bleeder End Cap or Reducing Bush. One supplied in a black primer finish with a left hand BSP thread.

Available in two sizes 41mm 1.25”BSP  (55mm outer flange diameter)  and 47mm 1.5”BSP (61.5mm outer flange diameter) depending on which radiator they are for.  Reduces down to 0.125" to fit most standard bleed valves.


A EPDM Gasket must be used to form a watertight seal.

    Size required
    EPDM Gasket to fit