14" Rough-In Two-Piece Round Front Toilet, 1.28 gpf, White

Gerber Viper® GWS31504 – 1.28 gpf Two-Piece Round Front Toilet with 14" Rough-In

The Gerber Viper® GWS31504 is a high-efficiency, two-piece toilet engineered to support performance and water conservation standards in both residential and light commercial applications. This model features a 14-inch rough-in, round front bowl, and a 1.28 gallons per flush (gpf) rating, delivering effective waste removal with reduced water usage.

Product Highlights

• Flush System: Extra-large dual-fed siphon jet and 3-inch flush valve maximize bowl clearing power while maintaining water efficiency.
• Water-Saving Design: 1.28 gpf operation meets EPA WaterSense® standards without sacrificing performance.
• Fully Glazed Trapway: 2-inch diameter, fully glazed for improved waste passage and clog resistance.
• Durability: Rigid flapper and corrosion-resistant internal components ensure long-term reliability.
• 14" Rough-In: Suitable for retrofits or installations where a longer distance from wall to floor flange is required.

Material and Construction

• Material: Vitreous china
• Bowl Type: Round front
• Configuration: Two-piece toilet (separate tank and bowl)
• Color: White

Technical Specifications

• Gallons Per Flush: 1.28
• Trapway Size: 2" (fully glazed)
• Flush Valve Size: 3"
• Rough-In: 14"
• Warranty: Limited lifetime on china, 15 years on parts and components

Installation Notes

The GWS31504 is designed for standard floor-mount installation using a 14-inch rough-in. It includes an advanced multipoint mounting system and tall bolt caps to simplify the install process. For best results, installation should be performed by a qualified plumber to ensure alignment, sealing, and code compliance.

Contractor-Focused Advantages

This Viper® model provides a dependable flushing platform for new construction and renovation projects requiring a 14-inch rough-in. The round front bowl is ideal for compact spaces, and its efficiency credentials make it suitable for projects seeking LEED points or code-compliant water conservation.