Bio-Chem Fluidics - Electric Rotary Valve
Glass Expansion - Niagara Rapid Rinse Accessory
Hamilton - Automated Valves
Labomatic instruments AG - LABOPORT rotating valve
VICI® Valco Instruments Company Inc. - CHEMINERT HPLC Injectors and Switching Valves
VICI® Valco Instruments Company Inc. - HPLC Injectors/Switching Valves