4" Lavatory Centerset Faucet With Matching Pop-Up Drain, Brass Built in Satin Nickel Finish, Washerless - By Plumb USA Brass and copper waterways, metal body in satin nickel finish. Beautiful nickel finished faucets. Single Lever Handle Faucet - Great value for the price. Durable Washerless Cartridges, Easy to Maintain.Pop-up drain included. Standard 4" Installation - Easy to Install