Proto

Proto Corporation is the leading manufacturer of PVC fitting covers and jacketing systems for the insulation industry. We offer hundreds of different products in the largest variety of colors and sizes earning us a reputation as the industry innovator on many fronts. With a full-time research and development laboratory, Proto is constantly pushing the envelope with new products and designs for the insulation industry. Our dedication to quality and innovation has made Proto Corporation the industry standard since 1980. "Proto products are engineered & designed to the highest performance & quality standards in the industry.