Sun-Tek 22.5-in x 22.5-in Fixed Self-flashing Skylight with Tempered Low-e Argon GlassThis fixed self flashing skylight features a 4 in flat flange and a built in aluminum curb that is only 2 1 8 in high, making it one of the sleekest profiles in the industry. The skylight is completely assembled and includes installation hardware, so no additional flashing kit is needed. The tempered low e argon glass is argon filled and double insulated, providing maximum thermal benefits. It is approved for use by the Florida building code and the