Shop Billco at BPS Supply Group. Our online selection includes carbon steel pipe plugs, galvanized pipe plugs, square socket pipe plus, hex socket pipe plus and more. Billco top-selling products include precision-engineered PVC pipes and fittings, which are widely used in residential and commercial plumbing systems to ensure leak-free and efficient water distribution. They distinguish themselves by using eco-friendly materials in their manufacturing processes, ensuring that their products not only meet industry standards but also contribute to a greener future.