BH 224L® 22″ Locking Inlet Ring and Cover Set This standard BH 224L® set features a 22-inch diameter by 4-inch tall cast iron storm inlet ring and a matching locking cover. As a stock item, it is readily available for curb inlet access projects where it will not be subjected to traffic. Proudly made in the USA, this durable assembly is crafted from coated gray iron, meeting or exceeding ASTM A48 CL35B and AASHTO M306-10 standards. The product can be purchased as a complete set or as indi