Certifications/Compliance: USP Type I and ASTM E438 Type I, Class A. Product Type: Standard Taper Kit. For Use With (Application): For extraction, reflux, reflux with addition, fractionation, and distillation. Includes: Bleed adapter, claisen adapter, condenser, connecting adapter, distillation column, 25mL, 50mL, 100mL, 250mL, 500mL Flask, 125mL PTFE funnel, outlet adapter, stopper, vacuum adapter.