Proco Products, Inc. is the global leader in the design and supply of expansion joints for piping/ducting systems. For over 30 years, Proco has prided themselves on offering the most complete line of products to suit a variety of applications. Some of these products include rubber and molded PTFE expansion joints, braided flexible hose assemblies, and rubber duckbill check valves. With more than $3 million in inventory, Proco maintains one of the largest stocks of product in North America. Contact Proco for pricing and availability on the appropriate expansion joint or check valve for a particular application.