19mm ID Black 20 Metre Length Rubber Heater Hose AutoSiliconeHoses

📏 19MM (3/4") BORE, 20M LENGTH – 19mm internal diameter, 29mm outside diameter and 5mm wall, supplied as one continuous 20 metre length (65.6ft, approx. 10 kg), ideal for bulk installs with the fewest joins. 🚗 CAR HEATER & COOLANT HOSE – replaces perished or split rubber heater hose. The 19mm bore suits heater matrix feed and return lines on cars, vans and classic cars, campervan and boat heater circuits, and water pump bypass hoses. Works with water, antifreeze coolant mixes and low-pressure air. 🛡️ SAE J20R3 REINFORCED BUILD – smooth black heat-resistant EPDM inner tube, high-tensile fibre yarn reinforcement and a weather-resistant synthetic rubber cover that stands up to under-bonnet heat, ozone and ageing. 🌡️ -20°C TO +100°C RATED – works continuously from -20°C to +100°C with peaks to +120°C. Rated 10 bar working and 30 bar burst pressure (3:1 safety factor); the 19mm bore has a 174mm minimum bend radius. 🔧 EASY TO CUT & FIT – trim square with a sharp blade and secure each end with hose clips sized for the 29mm outside diameter. For coolant, water and air only – not for fuel or oil lines.