Seal connection body and gasket

A seal connection body comprising:

• a squeeze packing having an annular shape;
• a ring having an annular shape and having an annular hole which forms a part of a fluid flow path;
• and
• a connecting piece that connects the squeeze packing and the ring by having one end joined to a part of an outer peripheral surface of the squeeze packing and the other end joined to a part of an outer peripheral surface of the ring,
• wherein the seal connection body has a figure eight shape when viewed from above,
• wherein a thickness of the squeeze packing is thicker than a thickness of the connecting piece,
• wherein upper and lower ends of the squeeze packing protrude from the connecting piece,
• wherein a thickness of the ring is thicker than the thickness of the connecting piece, and
• wherein upper and lower ends of the ring protrude from the connecting piece.