This Kit is a Set of 2 NON-Standard 2" Heater or Pump Union O-Ring that measures 2 5/8" Center to Center. The O-Ring is 2 5/8" center to center and fits some unions but most unions are 2 1/2" center to center... Do not buy this O-Ring until you verify that you have a 2 5/8" Center to center groove in your union for this O-Ring to fit into..
For the other 2" which is 2 1/2" Center to Center standard O-Ring click here: 2 1/2" Center to Center Pump Union O-Ring How to Video
SP RMG-02-652G
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