Abstract: A container for use with a pressure washer spray lance includes a hollow member having an opening for housing a chemical and a cap assembly. The cap assembly for the container includes an inner member and an outer member and is configured to allow the use of the container in an inverted or upright position.

Abstract: A pressure washer includes a pump and an injector. The pump is configured to pump a fluid at a pressure that ranges from low to high. The injector has a nozzle and an external member, with the external member being positioned around the nozzle. The injector is configured to spray at least one of a fluid or a fluid combined with a first chemical in the low pressure range, and at least one of a fluid or a fluid combined with a second chemical in the high pressure range. An injector is provided that includes a metallic nozzle and a non-metallic external member.