Two-piece sublimer consisting of an upper water cooled condenser and lower flat bottom flask. Sublimate is collected on the inner wall of the condenser. The two components are assembled by a grease-free o-ring seal which permits the components to be gently separated for maximum product recovery. When condenser is inverted, the top vacuum connection serves as a funnel for convenient product removal. Complete apparatus consists of a condenser, flask, Viton o-ring and CG-150 stainless steel clamp. Available in two listed sizes.