Seal for gas turbine filter

A turbine filter seal assembly (11) may include a first mounting flange (32) with a channel (50) extending about a first air opening (150), a seal (30) with an enlarged portion (84) compressed into the channel (50), and a second mounting flange (34) with a protrusion (52) extending about a second air opening (152). The first and second mounting flanges (32, 34) are configured to couple to one another about the seal (30), and the protrusion (52) is configured to bias the seal (30).