Double wall Straight cut tip, with 3" ID inlet, 4" diameter body with an overall length of 9" Can be clamped or welded in place. Made from 304 stainless steel for maximum corrosion resistance. Hand mirror polished finish. The quality of our tips is far superior to the less expensive tips on the market. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.