Pressure-Assist 1.0 GPF Toilet Tank Replacement System for Two-Piece Toilets, M-101526-F42, 504 Series

This 1.0‑gallon pressure‑assist tank system is engineered for reliable performance in one‑piece pressure‑assist toilets, offering powerful flushing action and consistent flow. It is designed specifically for systems originally equipped with Flushmate III 504‑series technology, ensuring compatibility and dependable operation.

The system includes key components such as the vessel (1.0 GPF), tank nut, and essential gaskets for tank‑to‑bowl integration—providing a complete solution for maintenance or replacement needs.

To verify that M-101526-F31 is the correct replacement system for your Flushmate system, please verify that the serial number on the label located on the top of your existing Flushmate unit contains the following information:

• Right-hand, left-hand, push button handle location
• Maintains consistent flush volume throughout long‑term usage
• Helps reduce double flushing through high‑flow pressure‑assist operation
• Designed for use with two‑piece pressure‑assist toilet tanks for dependable operation
• Suitable for high‑demand environments such as hotels, schools, and commercial restrooms
• Provides a 1.0‑gallon pressure‑assist flush system compatible with Flushmate III 504‑series toilets
• Fits Porcelain Brands: Contrac, Corona , Gerber , Glacier Bay, Kohler , Mansfield , ProFlo, Seasons, Western
• Includes all installation components: system vessel (M-101526-F31), tank‑to‑tank gasket (A-323288), shank locknut (B-103021), discharge extension locknut (A-119221-1), and tank‑to‑bowl gasket (E-205288)