Fair-Rite 0443164151 Ferrite Clamp On bead, 43 material, suitable for clamping over cables up to 13.05mm diameter for RF suppression between 30 and 400MHz.  These are very effective at suppressing common mode noise in the 1 to 30MHz region if the cable to be suppressed can be wound through the core a number of times.  Ideal for use on RG8, RG213, and 400 series cables.

Fair-rite PN# 0443164151, These are also known as a 2X43-151P2 buy other suppliers.  32.5mm L x 29mm W, 14.6mm H, ( inside diameter 13.05mm ) For more information see the Fair-rite 0443164151 Data Sheet

We can generally supply these in higher quantities than stocked in around 1 week POA