Product Info Catalog Building Materials Walls & Siding Moulding 8' WHT QTR RND Molding 8' WHT QTR RND Molding Request a Quote UPC: 765096846078 Manufacturer: Inteplast Building Products SKU: 227382 Model Number: 51070800032 9/16" x 9/16" x 8', Crystal White, Pre-Finished Polystyrene Interior Quarter Round Molding.