V-band coupling by RG Ray, genuine PN# 100080.
Approx 8.66 inch diameter x .281 channel width.
006021 RG Ray V-band Clamp (3595658)
010513 RG Ray V-band Clamp
01208980042 42mm x 9mm Norma S Bolt Clamp
050432-002 RG Ray V-band Clamp
1-1/16 to 2" Breeze Hose Clamp, 62024H (10pk)