Rack Hose: Diameter:1",1.5",1.75",2",2.5 ... ,Red,etc. Work Pressure:10Bar,14Bar,17Bar,21Bar Rack hose is usually used in indoor fire box of hotel, ... lumps and irregular twist. Characters of EPDM hose:Its inner lining is the finished cure EPDM hose with non-osmotic. Between the lining ... liquid adhesive, so the adhesion strength is very high. EPDM fire hose has good oil resistance, acid, alkali, aging and ...