WHEATON® HDPE Scintillation Vial, Round PP Cap, 6 mL. See all 2 items in this product family. 6mL vial made from high density polyethylene. Hanging cap allows for suspending vial in 20mL vial with 22mm neck finish. Dimensions with cap attached: 17mm x 57mm. For additional organization of your vials use the WHEATON® Vial Rack 868810.