These 304 Stainless Steel heater hose fittings replace conventional fittings for most V8 engines. These are the fittings that will put the Final Touch on your pride and joy. They are extremely durable, ultra-smooth, and are highly rust and corrosion resistant. Select from hex or 12 point. Available in 5/8" hose IDs, and lengths between 1-3/4" to 2-7/8". All 1/2" pipe threads unless otherwise noted.