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Stainless steel strainer, handle and ball valve; Plated brass body; Internal ball valve; Over twice the drainage rate; Can be used with or without an overflow assembly; Handle treated with SaniGuard® anti-microbial coating; Fits 3 1/2" sink opening; Fits 1 1/2" or 2" pipe size; Note: SANIGUARD­­® antimicrobial product protection is designed to protect the product itself. It is not a disinfectant and will not protect users or others from food-borne illness or disease. Always use good hygiene and cleaning practices.;