Delta RP72564PN Cassidy Polished Nickel Set Screw And Button. Delta's Line of Commercial Products are an industry leader in the Bathroom Faucets, Shower Fixtures and Bathroom Accessories. The large line of Commercial Grade Replacement Parts are designed to withstand the every day wear and tear, and perform the way the original part was intended too. These products are ideal for hospitals, schools, and other high traffic and high use applications. This Delta RP72564PN Cassidy Polished Nickel Set Screw And Button is a genuine replacement part designed for T14097-LHP, T14297-LHP, T14497-LHP Shower Valves.