Microscale Hickman Still Head used to carry out micro sample fractional distillations. With outer joint at top externally threaded to allow a O-RING-CAP-SEAL connection with mating male joint and inner joint at bottom. Supplied with cap, O-Ring and septum. Available with ex-ternally threaded outer side port off resevoir, both side port and top joint supplied with cap and septum for syringe injection or retrieval.