We got you covered™ with storm drain or storm sewer curb inlet throats and accessories– cast gray iron. Standard sizes and styles are available and are stock items. Check individual items for traffic rating & ASTM data. Beware of poor quality import imitations, always insist on products made in the USA. Please use the Contact Form or call us to request info & submittal sheets. 1-800-258-2278 Toll Free (972) 263-1360 DFW Local.