entry portion 412 can include one or more apertures such that the drain entry portion 412 can be fastened to the bottom of the sink using suitable fasteners 456 disposed through the apertures such as one or more screws the second end portion 424 of the second drain entry portion 412 can include a lip 426 for receiving a seal 428 the flange plate 414 can have an outer edge portion 430 and an inner edge portion 432 the outer edge portion 430 of the flange plate 414 can rest on the seal 428 such that the seal 428 prevents water inside the drain 401 from passing between the intersection of the second drain entry portion 412 and the flange plate 414 the inner edge portion 432 of the flange plate 414 can receive a lip 434 of the drain pipe 418 for supporting the drain pipe 418 the strainer 416 can be disposed above the lip 434 of the drain pipe 418 and the inner edge portion 432 of the flange plate 414 the strainer 416 can include a seal 436 for contacting the lip 434 of the drain pipe 418 and preventing the passage of water in the drain 401 past the seal 436 the strainer 416 can be press fit within the flange plate 414 the strainer 416 can have.