Features: Upgraded Stainless Steel Durability -- Engineered to outlast brittle plastic OEM connectors, our Coolant Connectors are rafted from high-quality stainless steel for exceptional durability, superior corrosion resistance, and reliable performance in extreme temperatures. Leak-Proof, Secure Seal -- This connector integrates seamlessly into your vehicle’s heater system and coolant lines. Integrated O-rings and robust stainless steel clamps ensure a tight, airtight connection that minimizes leaks and maintains system integrity. .