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BUCHI 3 piece Large Coupling Set for 500 mL Beaker Flask

– Large Glass Coupling BUCHI 037031 STJ 24/40

– Flange Screw Coupling BUCHI 034139

– Seal to product vessel BUCHI 034152

Items 1,2&3 in the diagram

All pieces are clean, new and un-used

For more BUCHI supplies and other Evaporator equipment , please see our other listings. Thank you!