It seems Amazon are having a bit of a Summer stock clear out, and i've just ordered this hose attachment, reduced from RRP of £36.28. Much better than the plastic ones - I know as I recently stood on mine and snapped the connector.
Product Features (from Amazon page)...
* Ultra tough zinc alloy body
* Comfortable soft touch ergonomics
* Comes with a range of genuinely useful, class leading spray patterns
* Locking trigger
* Variable flow from the rear flow control
Ultra 14 spray gun combines fantastic looks, comfortable soft touch ergonomics with a range of genuinely useful, class-leading spray patterns. Features patented infinitely variable trigger flow control--the harder you squeeze the more water you get--and a two-stage locking trigger: lock at 100% flow and 40% flow. Comes with six spray patterns: Powerful Jet for cleaning, Fast Fill for filling up buckets and watering cans, Fine Mist for seedlings, High Definition Nickel Overplated Brass Rose for gentle watering, Fan Spray for rinsing soap off cars, and Cone Spray for delicate watering.