Proco Products, Inc. is a global supplier of spherical and spool-type rubber expansion joints, convoluted PFA & PTFE Teflon(r)expansion joints and WALL PENETRATION SEALS. We are headquartered in Stockton, California and have a $1.6 million inventory of expansion joints ranging in size from 1/2" I.D. to 72" I.D. Please visit our website for the latest information on rubber and Teflon(r) type expansion joints. Feel free to download our brochure information which is in PDF format. We have an extensive agent network and can support your needs at a moments notice. Call for the Agent nearest you.