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📏 38mm (1 1/2") ID x 950mm STRAIGHT COUPLER - 38mm internal diameter, 4.5mm wall and 47mm Outside Diameter (OD). The 950mm piece suits long runs, and can be cut down to the exact length needed. Push it over two 38mm pipes or spigots of the same size to make a sealed inline joint. 🔧 BUILT FOR COOLANT & RADIATOR PIPEWORK - joins hard pipe, hose and spigots on coolant, radiator, heater, turbo, intercooler and air intake systems in cars, vans, motorbikes, trucks, plant and industrial machinery. 🌡️ HIGH TEMPERATURE SILICONE -60°C to +180°C - stays flexible through extreme heat and cold and resists ozone, UV and moisture, so it will not harden, crack or perish the way ageing rubber hose does. 🛡️ 3-PLY POLYESTER REINFORCED - 3 layers of polyester fabric inside a 4.5mm silicone wall hold the coupler's shape under boost pressure and vacuum, with a smooth bore for clean airflow and coolant flow. 🔵 BLUE GLOSS FINISH - a smart blue silicone joiner for a tidy engine bay. Cut with a sharp blade for a shorter joint, and secure each end with a hose clip sized for a 47mm Outside Diameter (OD). Also available in red and black.