Snap-Ring vials have two glass rings at the neck of the vial that allows the use of a plastic snap cap or aluminum seal. While aluminum seals can be used, a polyethylene Snap Ring cap eliminates the need for crimping which saves time in the lab. When using volatile liquids, we suggest the use of polypropylene GC Snap Top caps to provide an airtight seal.
The diameter of inserts varies between manufacturers. Only the following insert part numbers are compatible with these large opening vials.• 24719, 24720 Glass insert, conical bottom, 6 x 29mm• 24721 Glass insert with bottom spring, 6 x 29mm• 24722 Polypropylene insert with bottom spring, 6 x 29mm• 24717, 24718 Glass insert, conical bottom, 6 x 31mm• 24715, 24716 Glass insert, flat bottom, 6 x 31mm