Abstract: A brush applicator for use with a container for a fluid product and the combination with a container with a dispensing opening for a fluid product. The dispensing opening may be a spout, and the brush applicator has a brush body with bristles and a cap for surrounding the dispensing opening. There are first threads on the container and second threads in the brush applicator with these threads part of a valve structure wherein the tightening of the threads effects a fluid seal between the cap and the dispensing opening, and loosening the threads allows variable fluid flow from the container into the brush applicator. The brush applicator being securable to the cap and being capable of being snapped on and off the container by deformation of at least one of the cooperating threads. A method of making the complete brush applicator is also disclosed by shipping only the caps to the manufacturer of the brush applicator.