Radweld Plus 250Ml Great Product Radweld Plus is an easy to use, total cooling system leak repair. It works through your system to quickly seal leaks in: engine blocks, cylinder heads, hoses, heater core, water pump gaskets. Radweld Plus can be used at home and is simple to use; there’s no need to flush or drain the system. Simply pour in and let Radweld Plus locate and seal the leaks.
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