This 4318S Titan 18" Aluminum Hose Reel is built with a stainless steel manifold for increased chemical compatibility and longevity. The frame and discs are constructed of durable aluminum with a PVC spool, with stainless steel hardware that's built to last. The manifold may be constructed of either iron or stainless steel, depending on whether corrosion resistance is necessary. An electric rewind model is also available - 4318ES.