hose coupler for PVC layflat hose made in china zhejiang factory company with good quality and cheap price Common coupling1) Model :KD50, KD65, KD80, KD100, KY50, KY65,KN50,KN652) Nominal Diameter : 50mm, 65mm, 80mm, 100mm3) Working pressure :1.6Mpa 4) Strength test pressure :2.4Mpa 5) Material ; Cast Aluminum.6) Applicable Medium : clean water or foam admixture liquids