Hot Water Bottle Hot Water Bottle made from high quality rubber. (RANDOM colour will be supplied) Hot Water Bottle made from high quality rubber. It is ribbed for comfort and conforms to all applicable Australian and British standards. Instructions: When filling the hot water bottle, do not use boiling water and fill to a maximum of two thirds capacity, that is up to 1.3 Litres of water. Do not overfill as this could cause the bottle to burst. Recommended water temperature is 42 Degrees Celsius. When filling hold the bottle by the neck in an upright position, over the sink and away from your body and fill slowly to avoid hot water splashing back. Safety: Always read the label. Follow the directions for use. Do not place anything on top of the bottle, including sharp or heavy objects. Do not allow the product to come into contact with hot surfaces or naked flame. If symptoms persist, talk to your healthcare professional.