This Fluidmaster® 4T12UCSRC Universal Click Seal® Toilet Connector is fast and simple replacement for your toilet supply line. Only Fluidmaster® offers connectors with Click Seal® technology, just twist, and when your hear an audible "click" it's sealed. Quickly upgrade your old or leaking connector with flexibility that resists kinks or creases even in tight spaces. This toilet supply line fits 3/8" Comp, 7/16" Comp, 1/2" Comp, or 1/2" FIP x 7/8" Ballcock connections with included size adaptors. Replacing couldn’t be easier with no tools required. Braided stainless steel construction for durability and flexibility and featuring a 5 year warranty. Lead free and meeting all code requirements. For a simple and easy replacement of your toilet supply line trust Fluidmaster®s Click Seal® technology.