Radiator Bleed Screws. RADIATOR TYPES TYPE 1 - IDEAL CAST IRON RADIATORS BUY NOW Ideal – Old School Ideal – 4 Column Ideal – Panel TYPE 2 BUY NOW TYPE 3a BUY NOW TYPE 3b BUY NOW These radiators use one of two bleed screws, check out type 12. TYPE 4 BUY NOW TYPE 5 BUY NOW TYPE 6 BUY NOW TYPE 7 BUY NOW TYPE 8 - BARLO RADIATORS BUY NOW TYPE 9 BUY NOW TYPE 10 BUY NOW TYPE 11 BUY NOW TYPE 12 BUY NOW TYPE 13 – Myson / Quinn BUY NOW TYPE 14 BUY NOW TYPE 15 - CAST IRON CHUNKY COLUMN RADIATORS BUY NOW TYPE 16 BUY NOW TYPE 17 BUY NOW TYPE 18 BUY NOW TYPE 19 BUY NOW TYPE 20 BUY NOW TYPE 21 - CAST IRON RADIATORS MADE BY CRANE BUY NOW TYPE 22 - CAST IRON RADIATORS MADE BY IDEAL BUY NOW TYPE 23 BUY NOW TYPE 24 BUY NOW TYPE 25 BUY NOW TYPE 26 BUY NOW TYPE 27 - BUY NOW ❯ BUY NOW TYPE 28 - IMAGE COMING SOON! TYPE - 1/8" Bleed Valve BUY NOW TYPE - 1/2" Bleed Valve BUY NOW TYPE - 1/4" Bleed Valve BUY NOW