Brand Ikelite
Mount Type Snap-On
Buoyancy Neutral

Check the listing for details. Ikelite O-Ring 6" Dome rubber ring. Condition: Used. Listed at 12.90 USD. O-ring looks very nice. It seems to be new and never been used. But I am not sure what lens or housing it was made for. OD is 6".

$9.03
$12.90