<p><b>Notice About Bundle Packs:</b><br>Please understand our bundle packs share from a communal inventory. A buyout of one pack type will consume inventory of other packs. Due to limitations, our system has a delay in updating other pack stock quantities. Thank you graciously for understanding.</p><p>Tri Clamp ferrules offer the strength of a solid welded fitting, while still retaining a Tri Clamp end that connects to the rest of the Tri Clamp family of fittings. Our weld ferrules come in three sizes to match space restrictions and to be compatible with the nuances of various welding equipment. If intended to be mounted on the side of a tank, may we suggest you look into Tank Weld Ferrules, as their thicker walls may offer a more robust fitting with less finish work.</p>