Diamond Plastics is a PVC manufacturer with 7 different plants around the country. They have a vast array of PVC offerings from Water, Sewer, Profile and Restraint Joint products. Diamond Plastics is the front-runner in the industry in large diameter capabilities producing up to 60” solid wall and pressure pipe. In an industry ridiculed by corrosion in pipe, Diamond Plastics offers a long-lasting, corrosion-resistant product.