Contact Northwest Pipe Fittings Mailing Address P.O. Box 920Rapid City, South Dakota 57709-0920 Physical Address 2309 West Omaha StreetRapid City, South Dakota 57702 Telephone Toll Free: 800.658.2216Toll Free: 800.843.8808Local: 605.342.5587 Fax 605.342.0673