GLASS STOPCOCK, STRAIGHT
GLASS STOPCOCK (FOR BURETTE)
HOLLOW STOPPER, HEXAGONAL HEAD
SOLID STOPPER, PENNY HEAD
PTFE KEY STOPCOCK, STRAIGHT
PTFE KEY STOPCOCK (FOR BURETTE)
PTFE NEEDLE VALVE STOPCOCK, STRAIGHT
PTFE NEEDLE VALVE STOPCOCK (FOR BURETTE)
PTFE NEEDLE VALVE STOPCOCK FOR AUTOMATIC BURETTE