Standard short-reach 304 stainless steel radiator filler neck supplied with a low-pressure 1.5 Bar/22 psi stainless cap—ideal for custom builds and specialist cooling systems. This stainless radiator filler neck and cap set is designed for reliable sealing on pressurised cooling systems where a low-pressure cap is required. Manufactured from grade 304 stainless steel for corrosion resistance and durability, suitable for welding to a radiator or header tank. Enjoy a smooth checkout process. Please ensure the pressure rating and neck dimensions are suitable for your application before ordering. We are at your side both before and after the purchase with words and deeds. Contact us using the eBay contact form and we will get back to you as soon.