Description Roll On ferrule for 4 inch stainless steel tubing. Fits 4 Triclamp. Gaskets and clamps at links below see detail image to learn how to size stainless steel tubing and fittings Grade A quality. Made in North America 4999-1000-314 Related 4 inch Triclamp, Tri-clover, Clamp parts; 1000-004 Buna Rubber Gasket 1000-010 Teflon PTFE Gasket 1000-020 - Silicone Gasket 1000-444 basic econo clamp 17232 H.D. SS clamp 1000-099 End Cap for 4 inch Sanitary Stainless Steel Clamp 1000-324 Clamp Long Weld On ferrule 1000-334 Clamp Short Weld On Ferrule 1000-314 Roll On ferrule for 4 inch sanitary stainless steel tubing