Vacuum closure Pin Back Catalog number: C-VAC-PIN Manufacturer: MARKES INTERNATIONAL LIMITED Availability: In the manufacturer's stock Price on request - + Recommended U-COV100 O-Ring, low-emission, size 010, pk/100 Price on request T-8MAT Materials emissions cold trap, TT24-7 Price on request OST-227-3141 Spare solid glass stopcock key, NS 14,5, 2pc/pk Price on request