Colebrook Realty Services Inc. announced it has brokered the sale of 168 and 178 Industrial Dr. in Northampton. The firm announced the sale of approximately 58,443 square feet of class-A industrial/flex space in the Northampton Industrial Park, along with a 12,000-square-foot R&D building and a 2.10-acre adjoining land site. Kissell Inc. and PVC West Inc. sold the properties to GMS Realty LLP. The properties, which represent a significant portion of the park’s available industrial space, are highly strategic assets located along Interstate 91, with the Mass Pike interchange just 15 minutes south. The properties have been fully leased to strong local manufacturing and service companies for many years.