We represent many high quality manufactures of instrumentation and treatment equipment for the water and wastewater marketplace. Our customers include: municipalities, counties, State and Federal  Government, private utilities, universities, private environmental groups and industries. Our service department provides calibrations, start-up/training and, where possible, on-site repairs.

Please use the links at left to find out how we can help with your application or project.

Johnston, Inc. operates as a representative and distributor for the manufacturers shown on our products page. Often orders are placed with, and invoiced by, the manufacturer of the purchased equipment (please see note below). For orders invoiced by Johnston, Inc. we accept purchase orders with net 30 day terms for qualified customers. We also accept Visa and MasterCard payment.