Water bowser (also called water tank truck, water sray truck, water transport truck, water hauling truck, clean water truck, truck tanker for drinkable water tanker, water tanker for truck) is used to transport and supply water, whatever industrial or agriculture water, widely used in construction engineering, farm irrigation, draught relief, etc.

With non-toxic treatment inside tank or tank made of stainless steel, the water tank truck can be suitable for transporting drinking water, called as potable water tanker, drinking water tanker, stainless steel water tanker, agua potavel, safe to human body.

Water tanker can also be equipped with special sprayers to achieve front flush, rear sprinkle, side spray, to sprinkle and clean the roads, streeets for environmental sanitation and protection, called as water sprinkler, water spray truck.
With rear working platform and high cannon, the Water lorry can also be used to water the plants, even high trees in virescence, called as watering truck.

Water bowser can be also equipped with pesticide spraying machine, to be used to spray pesticide in agriculture pest control field.