The ornamental design for inside surface of a filterelement having insertconstruction, as shown and described.
FIG. 1 is a perspective view of the inside surface of a filter element
having an insert construction showing our new design. This particular
perspective view is not normally viewable through the side walls of the
filter element, but is illustrated for purposes of clarity.
FIG. 2 is a top plan view thererof; and,
FIG. 3 is a side elevational view thereof, all the sides being identical.
This particular side elevational view is not normally viewable through the
side walls of the filter element, but us illustrated for purposes of
clarity.
The broken lines which define the bounds of the claimed design form no part
thereof. The broken line environmental showing is for illustrative
purposes only and forms no part of the claimed design.