Wheaton W225282 Borosilicate Glass Clear Flat Bottom Headspace Vial, Beveled Finish, 10ml Capacity (Case of 100);

Wheaton Headspace Vials feature flat shoulders and bottoms, allowing for even heating and safer operation at higher pressures. The newly designed top provides a tighter seal with your septa. Vials are manufactured from Type I borosilicate glass and accept 20 mm aluminum seals.