A seal for sealing between a first member and a second member, including a first annular insert and a second annular insert axially spaced from the first annular insert. An elastomeric body includes a first portion over-molded on the first annular insert and a second portion over-molded on the second annular insert and an intermediate web extending between the first and second portions. The first and second portions including an annular flap extending from the first and second annular inserts that in an un-installed condition, extend radially relative to the first and second annular inserts and in an installed position are adapted to be compressed between the annular inserts and a surface of the first and second members.