This Gerber s compression stem assembly is designed for the Classics kitchen and bathroom deck faucets. Easy to install and to prevent leakage to eliminate any further concerns. This cartridge is specifically for the cold side only and includes a limited lifetime warranty.1-7/16 in. LAssembly kit includes brass seatFor cold side onlyBrass constructionsFor use with Gerber classic kitchen lavatory and bar faucetsSynthetic washer included