Product Overview
The Gerber 99-591 Tank-to-Bowl Gasket is a professional-grade sealing component engineered for secure and watertight connections between the tank and bowl assemblies in Gerber Ultra Flush systems. Designed specifically for use with models 28-380/4/5, DF-28-380/4/5, and EF-28-380/4/5, this gasket provides a reliable seal under system operating pressures, maintaining performance integrity and preventing leakage during service. The gasket is manufactured from high-quality elastomeric material and sized precisely to ensure correct fitment in compatible Gerber flush systems.
Technical Specifications
- Manufacturer: Gerber Plumbing Fixtures
- Model Number: 99-591
- Description: Tank-to-Bowl Gasket for Ultra Flush Systems
- Reference Number: 1842559
- Application: For sealing the interface between the water tank and bowl in Ultra Flush toilet systems
- Compatible Models:
- 28-380/4/5
- DF-28-380/4/5
- EF-28-380/4/5 Ultra Flush Tanks
- Material: High-density elastomer (green rubber compound)
- Color: Green
- Inner Diameter (ID): 2-1/8 in (54 mm)
- Outer Diameter (OD): 3-1/4 in (83 mm)
- Height: 1-3/8 in (35 mm)
- Function: Creates a compression seal between the tank outlet and bowl inlet to prevent water leakage
- Design Type: Molded ring gasket with uniform sealing surface
- Operating Pressure: Standard gravity and pressurized flush tank pressure conditions
- Temperature Range: Compatible with typical potable water system temperatures
- Installation: Fits between tank outlet and bowl horn; compresses under tank bolt tightening to form watertight seal
- Service Application: For maintenance, replacement, or assembly of Gerber Ultra Flush toilet systems
- Compliance: Meets industry standards for elastomeric plumbing gaskets
Summary
The Gerber 99-591 Tank-to-Bowl Gasket is a precision-molded green elastomer gasket measuring 2-1/8 inches ID by 3-1/4 inches OD by 1-3/8 inches H. Designed for Ultra Flush models 28-380/4/5, DF-28-380/4/5, and EF-28-380/4/5, it provides a durable, watertight seal for professional tank-to-bowl connections in Gerber plumbing systems.
