Check the listing for details. Fleck Stainless Steel Seal Gasket 11726 or 14105 Rubber seal to fix fleck BYPASS. Color: Black, Condition: New. Listed at 19.99 USD. Fleck Stainless Steel Seal Gasket 11726 or 14105 Rubber seal to fix fleck BYPASS. This seal – part # 11726 is a replacement seal for the single lever Fleck bypasses.Rubber seal to fix fleck stainless steel bypass.Rubber seal to fix fleck stainless steel bypass This seal fits both the brass and stainless steel bypass valvesIt fits both the 3/4″ and 1″ bypass valvesThis valve fits the 5600 series, 2510, 6600, 6700, 9000, 9100, and some other Fleck models. It fits both the digital and mechanical systems. This is the only replaceable seal and will typically fix all leaks around the bypass handle unless the metal bypass body is damaged in some wayThis seal allows you to fix leaking on the bypass without doing any additional plumbing and without replacing the entire bypass