PP drum screw connection, Mauser 2'' coarse threads, outside. Supplied = assembled. Material = polypropylene. Thread = 2 inch. Product type = accessories for hand pumps. For a secure hold in the drum. Drum screw connection made of polypropylene (PP) for drum pumps made of PP and PTFE. For Mauser 2'' inside coarse threads and hole for immersion tube 32 mm.