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

Inside the U.S.

Outside the U.S.

Plastic Needle Valves

Instrument Isolation

Laboratory Faucets

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