HomeStopcocks Stopcocks Please click on the selected stopcock 3 way stopcock = LLF x LLF x Int. 4,1 3 way stopcock = LLF x LLF x Luer Slip 3 way stopcock = LLF x LLF x 3×4,1 mm 3 way stopcock = LLF x LLF x Luer Lock 9,5mm