Usage: for engine air intake, exhaust, water, oil resistance, turbocharger, radiators,intercoolers, ... Hose RuducerUsed to connect piping of different dimensions.Specification for silicone hose:1) Usage; for engine air intake, exhaust, water, oil resistance, turbocharger ... ; -65 to +260 ; Special requirement can reach to +300 3) Pressure range; 0.3 to 2.4Mpa; Special requirement can reach ...