Solvent Pro 18/35 Collection Flask Valve

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Solvent Pro 18/35 Collection Flask Valve This is a replacement collection flask valve for Solvent Pro series rotary evaporators. It features a PTFE threaded valve with Viton O-ring s for a precision leak-proof vacuum seal. The flange has an ID of 18mm and an OD of 35mm with a 3/8" hose barb for 3/8" ID hoses. Show more