Zuhne Exo Stainless Steel Kitchen Sink Basket Strainer Set for Standard 3.5" Drain, 3 Piece Brought to you by Zuhne  ARCHITECTS CHOICE for premium products specified in high-end projects COMMERCIAL GRADE rust-proof construction preferred by builders & compatible with standard 3.5 inch drain sinks Great SUBSTITUTE for expensive waste disposers that break down easily & use significant energy Inbuilt NPT male adapter connects to standard piping, flange/O-rings included for leak-free concealed fit + LIFETIME WARRANTY Manual waste disposal has been proven to be more HYGIENIC since waste disposers retain clogged residue & spread bacterial contamination