Replacement pump volute o-ring for select pumps used in Sundance Spas with the rear housing P/N 6500-540.
Front housing O-ring, Fits Sundance series Theramax/Theraflo Pumps, 06/2009+ for 48 frame pumps : 6500-341, 6500-343, 6500-347, 6500-349, 6500-351, 6500-355.
Important Product Note.
This O-ring is larger then the 6500-290 and is not interchangeable, the 6500-545 will only fit in the pumps with the rear housing P/N 6500-540.
