Send inquiry Bung adaptor G2"(m)-Ø30(f) With split collar. G2” (m) thread for drum or drum covers. Send inquiry Download picture Technical data Part No 28591 Pump 12750, 12751, 12752, 12755, 12756, 12757, 12650, 12651, 12652. Pump tube Ø 30 mm H.S. Code 84139100