Please review the additional photos to better understand this revolutionary waste.The flush, seamless look of the patented Pop Down in the "open" position is preferred by Architects and designers for it''s simple, seamless elegance: no more unsightly pop-up drains. It is also incredibly easy to clean.This style is for standard tubs where the pipes behind the tub are not seen.The toy-friendly stopper flows great and meets or exceeds code required flow rates.Push to close, push to open, lift to clean, what could be more simple?Bounty Brassware is setting the Standard for the finest drains available. You will experience the difference a world-class design can make:• Designer''s Choice• Seamless Look• Toy Friendly: The profile stops most toys• Easy to clean• Never clean a pop-up drain again• Heavy duty solid brass• Top is finished in durable powder-coat for installation where the drain is not seen underneath the sink. The under-sink, unseen portion is finished in polished chrome• 2-3/4" flange fits standard tubs with a 1-15/16" bore (or greater)Comes boxed with instructions: ready to install10 year warranty on the Pop Down mechanism and o-ring1 year warranty on finish