This o-ring is 5.5" ID and 0.166" thick and fits an older model Hawkins pressure cooker. I couldn't find an OEM Revain o-ring replacement (they offer 2-3/4" outer rings for the newer Hawkins pressure cooker that don't fit). The first photo shows the original o-ring and the replacement Pentair o-ring with the coating applied. The 2nd and 3rd photos show the pressure cooker and the lid. By the way, the quality of Captain O-Ring's O-Ring is excellent, and we're glad it's an American company! 5 Stars.
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