Gerber WS-20-852, Two-Piece Toilet, 12" Rough-In, Left-Hand Trip Lever, White, Round Front, 1.28 gpf, Avalanche Elite Series

Gerber GWS20852 Avalanche Elite Two-Piece Toilet – 1.28 gpf, Round Front, Concealed Trapway

The Gerber Avalanche Elite GWS20852 is a high-efficiency two-piece toilet designed with both performance and installation flexibility in mind. Featuring a round front bowl and a low-profile tank, this model is well-suited for residential and light commercial applications where space savings and reliable flushing performance are required.

Product Overview

• Flush Rate: Operates at 1.28 gallons per flush (4.8 Lpf) for water conservation and EPA WaterSense compliance
• Flush Technology: Siphon-jet flushing system delivers consistent bowl evacuation with reduced risk of clogs
• Trapway: Concealed trapway design enhances appearance and simplifies exterior cleaning
• Bowl Height: ErgoHeight® bowl (17") complies with ADA standards for accessible installations
• Bowl Shape: Round front configuration optimizes floor space in compact installations
• Installation Footprint: Oversized base helps conceal marks from previous installations, reducing prep time for replacements

Technical Specifications

• Model: GWS20852
• Configuration: Two-piece toilet with separate tank and bowl
• Rough-In: 12-inch standard rough-in
• Flush Volume: 1.28 gpf
• Bowl Height: 17 inches (without seat)
• Seat: Sold separately

Installation Considerations

Designed for standard floor-mounted installations with a 12" rough-in. The large footprint is advantageous during retrofit jobs where old caulk lines or discoloration may be visible. Use of a wax ring, flange bolts, and tank-to-bowl gasket is required. Professional installation is recommended to ensure code compliance and prevent sealing issues.

Contractor Notes

• ✔️ Ideal for multi-unit housing, light commercial, or residential remodels where durable performance and ease of maintenance are priorities
• ✔️ Concealed trapway reduces external obstructions, simplifying cleaning in high-traffic applications
• ✔️ Compatible with Fluidmaster fill valves and standard flappers for simplified service