This solvent repurifier still combines reflux, distillation, storage and measurement.Unique Teflon® valve permits take-off, return to flask or storage in a 500 ml graduated reservoir. Supplied with septum port for removing samples. Lower joint is standard taper (24/40); receiver joint is (14/20). When used with Teflon® sleeves the unit is completely grease free. SELECT COMPONENTS LISTED BELOW.