As of October 2015, some good adjustable garden hose sprayers are the Gardenlite hose nozzle, Gilmour thumb control dial nozzle and Melnor heavy duty nozzle. Gardenlite's sprayer averages 4.7 out of five stars at Amazon.com. Positive reviews say that it is solid, comfortable and durable.
At Lowes.com, the Gilmour nozzle also earns a 4.7 rating. It has eight spray patterns and a soft grip. Positive comments remark that the thumb control is easy to use and offers good control. Melnor's nozzle has 10 spray options. Enthusiastic reviewers say that it is heavy-duty, has some unique spray patterns and does not leak or drip.