Fluidmaster PRO1T12CS Click-Seal Stainless Steel 12-Inch Toilet Supply Line<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fluid master Twist Click Seal Braided Stainless Steel Toilet Supply Line. - Click seal connection</li><li>No Burst， 3/8" female compression thread X 7/8" female ballcock thread</li><li>Seal nut clicks when connector has the proper seal， preventing over tightening and cracking of the nut and fill valve shank</li></ul></div><img src="http://ecx.images-amazon.com/images/I/315XFCp2AOL.jpg" noproxy>