Toilet Tank, Bone, 1.28 Gallons per Flush, Left Hand Lever, ADA

Gerber GWS38590 1.28 GPF Toilet Tank – Left-Hand Trip Lever, 12" Rough-In

The Gerber GWS38590 is a gravity-fed toilet tank engineered for use with compatible Gerber bowl models to form a complete high-efficiency toilet system. With a 1.28 gallon per flush (GPF) rating, it meets EPA WaterSense criteria for reduced water consumption without compromising flushing performance.

This tank features a front left-hand trip lever and is ADA-compliant when installed with an appropriate elongated bowl at proper seat height. It is designed for a standard 12-inch rough-in configuration and includes internal components for immediate installation.

Product Features

• Flush Volume: 1.28 GPF high-efficiency flush system
• Trip Lever: Left-hand side-mounted lever
• Compliance: ADA compliant when installed with compliant bowl
• Flush Type: Gravity-fed siphon jet
• Installation: 12" rough-in with rear tank mounting holes
• Color Options: Available in white and bone finishes

Specifications

• Model: GWS38590
• Flush Rate: 1.28 gallons per flush (4.8 liters)
• Rough-In: 12 inches
• Lever Location: Front left
• Material: Vitreous china

Installation Notes

This tank is compatible only with specific Gerber bowls rated for 1.28 GPF use. It includes pre-installed flushing components, tank-to-bowl gasket, and hardware. Follow manufacturer instructions for torque values and sealing procedures. Ensure the bowl and tank meet ADA height requirements when combined, if accessibility compliance is required.