This part is a Gasket Heater Union Mo-Flo, 2" ID x 2-3/4" OD Cal Spa with a 2-5/8" Center to Center Small Lip.. The Lip is about 2-5/8" Center to Center but is really thin and tiny meaning the other style gasket with a thick 2-5/8" lip will not work..
If you need the Thick Lip Gasket Click Here: 2 5/8" Lip Hot Tub Spa 2" Heater or Pump Union Gasket CMP Video How To
