Sigma-Aldrich
Ace O-rings, FETFE?
Ace O-rings, silicone
Ace O-rings, Viton?
Ace polished shaft
Ace Trubore?stirrer bearing
Aldrich?glass thermometer well
Aldrich?high-efficiency Friedrichs reflux condenser
Aldrich?vacuum adapter with SafetyBarb?hose connector
Büchi?B-540/B-545 melting point tubes