



All Nitterhouse Antique Finish Concrete Masonry Units conform to ASTM C90-99a, Type 1, for load-bearing units and ASTM C129-99a, Type 1, for non-load-bearing units. All aggregates used conform to ASTM C33-99a. All sampling and testing is done in accordance with ASTM C140-99b standards.
For colors, please call Nitterhouse Masonry Products to request a Color Selection Kit.