Not quite sure if that O-ring you’re about to use is a number 11 or a 12? Take a look at the table below to see the 10 most common scuba O-rings to keep in your save-a-dive-kit.

Feel free to print and laminate the O-ring table for your save-a-dive kit. If you have a laser printer, check out our reviews on waterproof papers here.

Important Point #1: Print the PDF as “Actual Size” or “100%” for the correct sizes.

Important Point #2: Do not replace an O-ring based on the size of a used O-ring. Used O-rings are often stretched beyond their original size.

Important Point #3: Always replace O-rings based on the equipment manufacturers specifications.

Download and print the O-ring table below: