Abstract: A rotary spray fluid apparatus anchorable to a car wash structure which has an elongate body portion with a side inlet and a rotatable hollow shaft extending therethrough defining an annular space with fluid transfer region, a pair of sealing regions and a pair of bearing regions. The shaft has a port adjacent the side inlet extending into an axial passageway in the shaft to flow to a spray head. Each sealing region has a pair of sealing rings. One ring of each pair of sealing rings is sealed to the body portion and the other is sealed to the rotatable shaft. A spring positioned in the fluid transfer region of the annular space provides an axial compressive force to maintain engaging faces of the sealing rings together as the shaft is rotated thereby sealing the annular space relative to the fluid flowing to the spray head.