Looking for a reliable diaphragm grommet with precise measurements? Look no further than the Essentra / Richco part DGB-7. This diaphragm grommet features a 16.0 mm (0.63 in) outer diameter, 11.0 mm (0.433 in) inner diameter, and 2 mm thickness. Designed for durability and performance, this grommet is perfect for various industrial applications.