AG butyl sanitation hose is extremely flexible and has been designed to lead the market as sewage pipe for marine toilets. It has a specially designed inner to prevent bad odours spreading from the hose, which you will be very thankful for. The inner tube is made from a black butyl rubber, which is then surrounded in a reinforcement layer of synthetic textile fabrics and a built in steel spiral. The outside of the hose is grey rubber and is highly resistant to abrasions, ozone and weather. The black water hose is cut from a 40 metre coil so orders of more than this will not be supplied as one single length of hose.