The ornamental design for a fluidcontainer with pressureseal, as shown and described.
FIG. 1 is an upper perspective view of a fluid container with pressure seal;
FIG. 2 is a lower perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The back view is the same as the front view shown in FIG. 3.
The right side view is a mirror image of the left side view shown in FIG. 4.
The broken lines shown in the figures are for the purpose of illustrating portions of the fluid container with pressure seal and form no part of the claimed design.