Lift Assure's Elongated Rear Outlet 2-Piece Toilet Kit. Rear outlet toilets are also referred to as rear discharge toilets, back flush toilets, or P-Trap toilets. These toilets are the perfect option when ground flushing models will not work. A standard toilet has an S-Trap internal configuration, whereby waste exits down through the toilet and into a sewer system that must be located below the toilet. In basements and first-floor applications, you must pair it with a macerator pump (not included) for proper drainage. The only time this 2-piece P-Trap toilet design can be used without a pump is when it is installed on a second floor (above ground level). With the rear outlet, you don't have to tear up the floor to connect your toilet. Installation and repairs are easier because there is no need to lift the toilet, which can disrupt the wax seal. These kits feature a half and full flush lever located on the side of the tank, a great feature that saves water and is cost-effective. You will be able to choose how much water is needed per flush, whether you are flushing solids or liquids. The lids on the Lift Assure Toilets have a nice soft-closing hinge that will prolong the life of the toilet seat. Color: White. Material: Ceramic.