Kallista Modern Toilet Supply Valve Bathroom - 21637-00-AG - Brushed Nickel. With its refined lines and polished design, the modern toilet supply valve is the perfect accent to contemporary toilets. Toilet supply valve with solid-brass construction for durability and reliability.Complements Kallista toilet fixtures Kallista P21637-00. This item is in the category "Home & Garden\Bath\Toilets & Bidets\Toilet Parts & Attachments". The seller is "as51987" and is located in this country: US. This item can be shipped to United States.