19mm > 13mm Silicone Hose Straight Reducer Red

📏 19mm TO 13mm INTERNAL DIAMETER (ID) - Large end 19mm (3/4"), small end 13mm (1/2"). 4.5mm wall, giving an Outside Diameter (OD) of 28mm and 22mm. 127mm long overall. Measure the outside of both pipes you are joining and match them to the two ID sizes. 🔧 JOINS TWO PIPE SIZES - A straight reducer joins two pipes of different sizes in one piece, so no metal adaptor is needed. Typical uses at this size: heater matrix feeds and returns, expansion tank and overflow pipes, and small radiator and water pump hoses. For air, water and coolant; not suitable for fuel or oil (choose our Fluoro Lined fuel and oil hose for those). 🌡️ -50°C TO +180°C OPERATING RANGE - Rated -50°C to +180°C with a peak of +250°C, so it copes on the cooling and heater circuit, which runs hot every time the engine is up to temperature. Working pressure 6.5 bar, burst pressure 19.5 bar (3:1 safety factor). 🛡️ SAE J20 R3, 3 PLY POLYESTER REINFORCED - Smooth extruded silicone inner with 3 layers of polyester fabric in the 4.5mm wall, so it holds its shape under pressure and resists swelling. The silicone resists ozone, UV light, weathering and ageing, so it lasts outdoors and in the engine bay without perishing. 🔴 RED - FITTING TIP - Push the hose fully onto the pipe, then use hose clips that cover about 22mm on the small end and 28mm on the large end. Red silicone gives a bold race-style look that makes joints and clips easy to check. Also available in other colours and sizes.