Amber 20 Ml Vials found in: 20 mL Amber Vial, Vial 20 ml Amber, Lab File, No Closure, Vial, crimp top, HS, 20 ml, amber 1000pk, Vial Amber Graduated 3ml,.. Clear or amber 20 mL capacity 24-400 screw cap Clear vials are manufactured from Wheaton 33 low extractable borosilicate glass that meets ASTM Type 1 Class A and USP Type 1 standards.