Our heavy duty double jacket hose. Using two all polyester high quality jackets together over a durable rubber lining gives this hose twice the abrasion resistance of other polyester hoses. Along with abrasion resistance, the two jackets also provide a higher working pressure for the toughest of conditions. DJ800 would be an excellent washdown or industrial service hose. It also fits the requirements of many municipal fire departments. If you are using length after length of single jacket hose, it might be time to step up to Double Jacket 800. DJ800 also fits most hose reels without a problem. The yellow color jacket has additional abrasion resistance that ensures a long lasting life.