20S-20FO Is a Code 61 Adapter – SAE O-Ring to Splt Flange measuring 1-1/4”
24S-24FO Is a Code 61 Adapter – SAE O-Ring to Splt Flange measuring 1-1/2”
16S-16FO Is a Code 61 Adapter – SAE O-Ring to Splt Flange measuring 1”
32S-32FO Is a Code 61 Adapter – SAE O-Ring to Splt Flange measuring 2”
12S-12FO Is a Code 61 Adapter – SAE O-Ring to Splt Flange measuring 3/4”