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• DURAN® glass head with or without bottle made of borosilicate glass 3.3, conforms to standards (DIN 12596) • 29/32 NS ground joint for connection to pipe via glass olives Ø ext. 11 mm
• Complete wash bottle with neck to standard thread NS 29/32 plunger thread 29/32 and two glass olives with an external diameter of 11 mm • Plunger only with neck to thread NS 29/32 with or without filter disc • Bottle only NS 29/32 • Very good chemical and thermal resistance