The Counties Manukau Rugby Football Union (CMRFU) is the governing body of rugby union in Southern Auckland and the Franklin district of New Zealand. Nicknamed the Steelers, their colours are red, white, and black horizontal bands. The Steelers moniker is a reference to the Glenbrook steel factory, which is in the area. The union is based in Pukekohe, and plays at Navigation Homes Stadium.

Pukekohe is a town in the Auckland Region of the North Island of New Zealand. Located at the southern edge of the Auckland Region, between the southern shore of the Manukau Harbour and the mouth of the Waikato River. The hills of Pukekohe and nearby Bombay Hills form the natural southern limit of the Auckland region. Pukekohe is located within the political boundaries of the Auckland Council, following the abolition of the Franklin District Council on 1 November 2010.