Crimp-Top AR0-3260-13 Headspace Vial, 23 x 75mm, 20mL Beveled Edge, Flat Bottom, Clear, No Patch 1000/pk AR0-3263-13 Headspace Vial, 23 x 75mm, 20mL Beveled Rim, Flat Bottom., Clear, No Patch, Silanized 1000/pk AR0-3290-13 Headspace Vial, 23 x 75mm, 20mL Square Rim, Flat Bottom, Clear, No Patch 1000/pk AR0-3270-13 Headspace Vial, 23 x 75mm