Mercury Pro+ 0.5 litre Double-Action & 360 Trigger Spray Bottle Green. The only sprayer guaranteed to give you hand relief! Available in two sizes, 500ml & 1L, our unique Kwazar Mercury Pro+360 Trigger sprayers contain viton seals, are colour coded and include the world's only double action spray head for a constant, fine spray with minimal effort! Now also come with a 360 degree capability (not the alkaline version). Spray at any angle. Even upside-down (the sprayer, not you).