[Maximize Cooling System Efficiency] Ensures proper coolant , enhancing overall engine performance and longevity.[Easy Coolant Refill] Inline design allows for simple addition of coolant to maintain engine efficiency.[ & -resistant] Made of t 6061 aluminum with a polished surface for longevity and resistance.[Versatile Use] Can be welded onto a 32mm pipe, suitable for various radiator system projects in most car .[High Strength Construction] Built to withstand daily use and maintain performance over time, ensuring reliable engine cooling.Spec:Item Type: Inline Radiator Hose Filler NeckMaterial: T-6061 Aluminum (Surface Polishing)Inlet Hose Size: 1-1/4inOutlet Hose Size: 1-1/4inHose Fitting: 110 mm long (neck welded to 32mm tube)The Function of Radiator Hose Filler Neck: To facilitate the addition of coolant to maintain the normal working temperature of the engine. During the long term use and driving of the radiator, the high temperature of the engine will be caused by the lack of the car coolant. Serious conditions may cause damage to the radiator and overheating of the engine, further causing various failures and affecting driving safety. Therefore, the existence of the filling port of the car radiator can easily add coolant, replenish and adjust the cooling system of the car in time, and the normal operation of the engine.Package List:1 xInline Radiator Hose Filler Neck (with )Note:Professional installation is strongly recommendedPlease note that the lids will be shipped randomly.