I was in Asda earlier buying stuff for a BBQ tomorrow and saw these. Seems good to me. These can be used in gardens for spraying weed killer, applying ferltilizer etc. You can also use these to spray your shed, fence etc. I've just used mine to apply decking cleaner before power washing my deck. I'm sure you can also think of many more uses for these. It has a 5 litre container with a pump and a hose with a sprayer type thing, see pic.