Delta RP75191PN Polished Nickel Lavatory Touch Faucet Insulator. Delta takes pride in providing their customers with quality products that are dependable and visually pleasing even after years of use. Their extensive line of Replacement Parts and Accessories are developed to perform and last the way the they were originally intended to. The Delta RP54095PN Polished Nickel Lavatory Faucet Lift Rod And Finial is a genuine replacement part manufactured by Delta in a Polished Nickel finish. This particular part is a Replacement Lavatory Touch Faucet Insulator Assembly.