Marquest Scientific, Inc. -- Manufacturer of plastic needle valves, gauge guards, and ultra pure

Customer Service (714) 491-9191

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Outside the U.S.?

Ohio Distributors

Harrington Industrial Plastics

Harrington Industrial Plastics - Cincinnati

Address:	1227 Hillsmith Drive - Cincinnati, OH. 45215
Telephone:	513.771.0880
Fax:	513.771.5915
Email:	cincinnati@hipco.com
Sales & Support:	www.harringtonplastics.com

Harrington Industrial Plastics - Independence

Address:	5405-C Valley Belt Road - Independence, OH. 44131
Telephone:	216.459.0447
Fax:	216.459.0477
Email:	cleveland@hipco.com
Sales & Support:	www.harringtonplastics.com

Harrington Industrial Plastics - Westerville

Address:	708 Enterprise Drive - Westerville, OH. 43081
Telephone:	614.433.0722
Fax:	614.433.0711
Email:	columbus@hipco.com
Sales & Support:	www.harringtonplastics.com

Ryan Herco Products

Ryan Herco Products - Brooklyn Heights

Address:	1311 E Schaaf Road, Bldg B - Brooklyn Heights, OH. 44131
Telephone:	800.848.1141
Fax:	216.398.8518
Email:	clevelandsales@ryanherco.com
Sales & Support:	www.ryanherco.com