With the addition of a second manufacturing facility, Prinsco's GOLDFLO Dual-Wall series has experienced significant growth. Prinsco now manufactures GOLDFLO WT, our watertight integral bell coupling system, through 48-inch diameter and GOLDFLO plain end pipe through 36-inch diameter. Expanding our product line has enabled customers to meet all of their water management needs with Prinsco as their sole resource for drainage products.