Patent ID: 6886866

Claim:
A fluid manifold comprising: a manifold body having a surface defining a plane; a bore extending into the manifold body from the surface, the manifold body defining a seat in the bore wherein the bore is adapted to receive a tube nut into a seated position against the seat in the bore; a first tube nut with a body having a first length and a first flange positioned at one end of the body of the first tube nut; a second tube nut with a body having a second length and a second flange positioned at one end of the body of the second tube nut; and a tube nut stop disposed adjacent the bore; wherein the tube nut stop is sized to engage the flange of the first tube nut when the first tube nut is placed into the manifold at the bore thereby preventing the first tube nut from being seated against the seat in the bore; and wherein the tube nut stop is of insufficient size to engage the flange of the second tube nut when the second tube nut is seated against the seat in the bore, thereby allowing the second tube nut to be seated against the seat in the bore.