- Easy to Use: The coolant funnel kit features a unique rotary switch to effectively prevent spills and air bubbles. Simply turn the switch gently to close, allowing for a hassle-free experience while refilling. - Hassle-Free Refilling: This quick coolant funnel kit delivers engine oil and coolant without contaminants or trapped air. The long spout fits securely on your radiator, and the gradual pouring ensures a smooth refill process after flushing out old coolant. - Enhanced Performance: Designed with reinforced threading, this product prevents leaks even in extreme conditions. It also includes an extension rod for access to hard-to-reach areas, making it ideal for all types of vehicles. - Versatile Applications: Whether you need to perform multi-purpose coolant pressure tests, radiator flushes, or engine flushes, this coolant kit has you covered without any spillage. The universal adapter is compatible with both domestic and foreign vehicles. Use scenarios: 1. Perfect for DIY mechanics looking to maintain their vehicles without messy spills and air pockets. 2. Ideal for professional mechanics who require a reliable tool to ensure proper coolant levels and efficiency during service. 3. Convenient for anyone needing to frequently check or replace coolant in various vehicle types.