Grimes-based Ryko Solutions Inc., the largest provider of managed car wash systems in North America, announced that it has agreed to acquire National Carwash Solutions LP, the largest independent car wash service organization in North America. The transaction is expected to close within the next 30 days. National Carwash Solutions, based in Pennsylvania, serves customers across 14 states in the Northeast and Mid-Atlantic regions. Financial terms of the transaction were not disclosed. The acquisition further solidifies Ryko's position as a leading service support provider in the car wash industry, with a combined network of more than 250 technicians nationwide, the company said in a release. Ryko, which in March 2013 acquired Canada-based MacNeil Car Wash Systems, manufactures and services car wash systems for convenience stores, private investors, land developers and auto dealers.