MYSON
TYPE 1 - RR001 - IDEAL CAST IRON RADIATORS
TYPE 2 - RR002
TYPE 3 - RR003 - MOST COMMON
TYPE 4 - RR004 - MYSON
TYPE 8 - RR008
TYPE 9 - RR009
TYPE 10 - RR010
TYPE 11 - RR011
TYPE 12 - RR012
TYPE 14 - RR014
If you can not see your radiator here and still unsure which Bleed Screw to use then check out the links below for more help.