Plug drain 3 1/2″ with siphon 1-chamber Power Color pure carbon (GRANIT-vertical), save space Mpn: 663 EN Variant Single-chamber Color Black Type Manual Destiny Granite sink Also check: PUSH TO OPEN 3 1/2″ drain with a 2-chamber Power Color pure carbon siphon (GRANIT-vertical), save space, round button Plug drain 3 1/2″ with siphon 2-chamber Power Color pure carbon (GRANIT-vertical), save space Plug drain 3 1/2″ with siphon 2-chamber PVD copper (GRANITE-vertical), save space <