Details The TOTO T40Aquia IV WASHLET Elongated Skirted Toilet Bowl is designed for use with the Aquia IV tank. The Skirted Design conceals the trapway, which enhances the elegant look of the toilet and adds an additional level of sophistication. Skirted Design toilets also minimize the need to reach behind the bowl to clean the nooks and crannies of the exterior trapway. When paired with its tank, the Aquia IV features TOTOs DYNAMAXTORNADO FLUSH, utilizing a 360 degree cleaning power to reach every part of the bowl. The enhanced design of the Aquia IV inner bowl reduces water flow resistance and turbulence, resulting in a quieter flush. The Aquia IV bowl offers TOTO T40WASHLET compatibility for when you are ready to upgrade. The T40WASHLET toilet features a channel on the bowl surface to help conceal your WASHLET supply line and power cord for seamless integration. Compatible with T40WASHLET electronic bidet seat models only. When paired with its tank, the Aquia IV meets the standards for EPA WaterSense, and Californias CEC and CALGreen requirements. The Aquia IV comes ready for install into a 12″ rough-in, but may be adapted for a 10″ or 14″ rough-in with the purchase of a separately sold adapter. Additional items needed for installation and use must be purchased separately: compatibletank, wax ring, toilet mounting bolts, water supply lines, and WASHLET or seat designed for WASHLET . Included parts: TOTO SS124SoftClose seat, tank to bowl gasket, tank to bowl hardware, and toilet bolt caps Elongated front toilet bowl for use with Aquia IV ST446EM or ST446UM dual-flush tank TOTO WASHLET upgrade compatibility: designed to work with a T40WASHLET bidet seat for seamless integration May be adapted for 10″ or 14″ rough-in with optional TOTO parts: TSU48.10 or TSU48.14 DYNAMAX TORNADO FLUSH utilizes 360 degree cleaning power to reach every part of the bowl Purchased separately: tank, wax ring, toilet mounting bolts, water supply lines, and toilet seat or WASHLET Bowl design reduces water flow resistance and turbulence, resulting in a quieter flush 12″ Rough-in Completely Skirted Design for a sleek and understated look, easier to maintain versus a two-piece toilet WASHLET adapter 9AU321A required if installing a TOTO WASHLET Included parts: TOTO SS124SoftClose seat, tank to bowl gasket, tank to bowl hardware, and toilet bolt caps DYNAMAX TORNADO FLUSH utilizes 360 degree cleaning power to reach every part of the bowl Manufacturer supplied links Manufacturer Web Site Installation Manual Warranty