Cork Stoppers, IDL

Poly Stoppers, IDL

Stoppers with standard ground joint (NS) made of polyethylene, with fluting for good sealing effect, embossed size marking, indifferent to nearly all lyes and acids, temperature-resistant up to ca. 125°C.

Stoppers acc. to DIN 12871, Deutsch & Neumann

Stoppers, Rettberg

Stoppers with conical ground joint, DIN 12252, form C, hollow, made of borosilicate glass, DURAN®.