Silicone rubber sealings, Septa for GL 14, pk/100 Back Catalog number: OST-LENZ01341214 Availability: In the manufacturer's stock Price on request - + Recommended T-2HD CW agents (in particular HD) cold trap, TT24-7 Price on request M-TICAP Tube interface cap for removable lid,pk 6 Price on request C-VAC-PIN Vacuum closure Pin Price on request