American Standard 735128-400.020 Features: Covered under American Standard's limited lifetime warranty Constructed of vitreous china for durability Designed for the Champion 4 toilet style, models 2018 and 2023 Fully conceals toilet tank parts while retaining easy access to tank interior Why Buy American Standard From Us: We are an American Standard Preferred Authorized Online Dealer We Only Ship Showroom Quality products vs Builder Grade quality found at big box retailers All metal parts, not plastic like some of our competitors Customer Care Experts Available 7 Days a Week to Serve You Before & After Purchase A Showroom Experience from the Comfort of Your Home or Office