Continental ContiTech F5 Blue TPE air hose assembly is a Hybrid thermoplastic hose manufactured for a variety of pneumatic applications where resistance to oil and cold temperatures is necessary. Its tube and Blue cover are both made of thermoplastic elastomer (TPE), which is non-marking, both durable and flexible, and resistant to oil. Both components are rated RMA Class b, which means that they will undergo a maximum volume change of +65 percent and maximum 50 percent loss of their tensile strength after exposure to oil. This hose is reinforced with polyester yarn for strength, can withstand temperatures ranging from -40 to +158 Degrees F (-40 to +70 Degrees C), and comes equipped with two factory-installed Brass male National pipe taper (NPT) threaded fittings. This hose is suitable for a wide range of pneumatic applications in industries such as construction and manufacturing. When selecting industrial hoses, use the stamped method: s = Size (ID, OD, and length) t = temperature (Max and min Temp of Material being transported) a = application (industry or process) M = Material (to be conveyed, Type and concentration) p = pressure (maximum working pressure) E = ends (Type of end connectors or couplings on hose) D = delivery method (volume and velocity) the inside diameter of the hose must be adequate to keep pressure loss to a minimum and avoid damage to the hose due to heat generation or excessive turbulence. The hose must be capable of withstanding the min and Max temperatures that occur within the hose system. Some applications require specialized oils or chemicals to be conveyed through the system. In this case, hose selection must ensure compatibility of the hose tube, cover, couplings and O-Rings with the fluid used. As a part of the Continental Corporation, the contitech division numbers among the leading suppliers of a host of technical rubber products and is a specialist for plastics technology.