The ID design of the J.G. Finneran R.A.M.™ Vial incorporates the Step Vial feature that precisely centers a limited volume inert in the vial neck. The flanged conical insert will only work in the Finneran vial.
Receive your quote directly from J.G. Finneran Associates, Inc for R.A.M.™ Vials Assembled with Step Insert