{"product_id":"toto-cst646cemfgnat4001","title":"Toto CST646CEMFGNAT4001 Aquia IV 15 inch 0.9 \/ 1.28 GPF Dual Flush One-Piece Elongated Toilet with Push Button Flush, in Cotton White (Seat Sold Separately)","description":"\u003cp\u003eThe Toto T40 Aquia IV 15 inch One-Piece Elongated Dual Flush Toilet combines modern design with exceptional functionality. Its skirted design conceals the trapway, enhancing its elegant appearance while making cleaning easier by eliminating gaps where dirt can accumulate. The one-piece construction also reduces the risk of leaks associated with two-piece toilets. Featuring Toto’s Dynamax Tornado Flush, it provides 360-degree cleaning power for thorough bowl coverage. The CEFIONTECT technology minimizes waste adhesion, further reducing cleaning frequency and the need for harsh chemicals. Additionally, the innovative inner bowl design decreases water flow resistance for a quieter flush. The chrome center-mounted push button allows users to choose between a 0.9 GPF rinse or a 1.28 GPF flush, promoting water conservation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDYNAMAX TORNADO FLUSH utilizes 360 degree cleaning power to reach every part of the bowl\u003c\/li\u003e\n\u003cli\u003eHighly efficient dual flush system promotes water conservation\u003c\/li\u003e\n\u003cli\u003eCEFIONTECT ceramic glaze minimizes waste from adhering to ceramic surfaces\u003c\/li\u003e\n\u003cli\u003eBowl design reduces water flow resistance and turbulence, resulting in a quieter flush\u003c\/li\u003e\n\u003cli\u003eCompletely skirted design for a sleek and understated look\u003c\/li\u003e\n\u003cli\u003eElongated one-piece toilet, easier to maintain versus a two-piece toilet\u003c\/li\u003e\n\u003cli\u003eTOTO WASHLET+ upgrade compatibility: designed to work with a T40 WASHLET+ bidet seat for seamless integration\u003c\/li\u003e\n\u003cli\u003eLid-top chrome dual flush push button - Select 1.28 or 0.9 GPF\u003c\/li\u003e\n\u003cli\u003eUniversal Height allows for more comfort across a broader range of individuals\u003c\/li\u003e\n\u003cli\u003eWaterSense, CALGreen, and CEC compliant\u003c\/li\u003e\n\u003cli\u003eDoes not include toilet seat or WASHLET\u003c\/li\u003e\n\u003cli\u003e12'' Rough-in\u003c\/li\u003e\n\u003cli\u003eMay be adapted for 10'' or 14'' rough-in with optional TOTO parts: TSU48.10 or TSU48.14 (sold separately)\u003c\/li\u003e\n\u003cli\u003eIncluded parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps\u003c\/li\u003e\n\u003cli\u003ePurchase Separately: Wax ring, toilet mounting bolts, water supply lines, T40 WASHLET+ bidet seat or compatible toilet seat SS124 or SS234, and optional Auto Flush kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eWhy should you buy Toto CST646CEMFGNAT4001 ?\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Efficient Dual Flush System\u003c\/strong\u003e\u003cbr\u003e\nThe 0.9 \/ 1.28 GPF dual flush option helps conserve water by allowing different flush levels for liquid and solid waste.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 15-Inch Rough-In Design\u003c\/strong\u003e\u003cbr\u003e\nThe 15-inch rough-in makes it a great choice for bathrooms with limited installation space.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern One-Piece Construction\u003c\/strong\u003e\u003cbr\u003e\nThe seamless one-piece design provides a sleek look and reduces areas where dirt can accumulate.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElongated Bowl for Added Comfort\u003c\/strong\u003e\u003cbr\u003e\nThe elongated bowl shape ensures a more comfortable seating experience compared to round bowls.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Aquia IV Performance\u003c\/strong\u003e\u003cbr\u003e\nThe Aquia IV system delivers reliable flushing power with improved efficiency and bowl cleanliness.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Cleaning and Maintenance\u003c\/strong\u003e\u003cbr\u003e\nThe smooth ceramic surface and simplified structure make cleaning quick and hassle-free.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions by Customers\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is a dual flush toilet?\u003c\/strong\u003e\u003cbr\u003e\nA dual flush toilet offers two flush options: a lower volume for liquid waste and a higher volume for solid waste.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat does 15-inch rough-in mean?\u003c\/strong\u003e\u003cbr\u003e\nIt refers to the distance between the wall and the center of the toilet’s drain outlet, which in this case is 15 inches.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this a one-piece toilet?\u003c\/strong\u003e\u003cbr\u003e\nYes, it features a seamless one-piece design for a modern look and easier cleaning.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this toilet save water?\u003c\/strong\u003e\u003cbr\u003e\nYes, it is designed with a dual flush system that significantly reduces water usage.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the bowl elongated?\u003c\/strong\u003e\u003cbr\u003e\nYes, the toilet comes with an elongated bowl for enhanced comfort.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs Aquia IV flushing system reliable?\u003c\/strong\u003e\u003cbr\u003e\nYes, the Aquia IV system is engineered for strong, efficient, and consistent flushing performance.\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePros and Cons of Toto CST646CEMFGNAT4001 Aquia IV 15 inch 0.9 \/ 1.28 GPF Dual Flush One Piece Elongated Toilet\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Flush Water Efficiency\u003c\/strong\u003e\u003cbr\u003e\nOffers 0.9\/1.28 GPF dual flush options, allowing users to save more water depending on waste type.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 15-Inch Design\u003c\/strong\u003e\u003cbr\u003e\nSpace-saving profile makes it suitable for smaller bathrooms without compromising comfort.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Construction\u003c\/strong\u003e\u003cbr\u003e\nSeamless design provides a modern look and makes cleaning easier by reducing dirt traps.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElongated Bowl Comfort\u003c\/strong\u003e\u003cbr\u003e\nElongated shape offers improved seating comfort compared to round bowls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower Seat Height (15 Inch)\u003c\/strong\u003e\u003cbr\u003e\nMay feel too low for some users, especially seniors or those preferring chair-height toilets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavier One-Piece Unit\u003c\/strong\u003e\u003cbr\u003e\nCan be difficult to install due to weight and structure.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimited Bathroom Fit in Some Cases\u003c\/strong\u003e\u003cbr\u003e\nElongated design may still be tight for extremely compact bathrooms.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConclusion\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Toto CST646CEMFGNAT4001 Aquia IV is a compact and highly efficient dual-flush toilet designed for modern water-saving needs. Its sleek one-piece design, strong flushing performance, and comfort-focused bowl make it a reliable choice for smaller bathrooms. While the lower height and higher cost may not suit everyone, it offers excellent efficiency, hygiene, and long-term value.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e","brand":"Toto","offers":[{"title":"CST646CEMFGNAT4001","offer_id":48789500887296,"sku":"CST646CEMFGNAT4001","price":977.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/2287\/9488\/files\/CST646CEMFGNAT4001_p198644.jpg?v=1780422934","url":"https:\/\/secure.shopappliances.com\/products\/toto-cst646cemfgnat4001","provider":"Shop Appliances","version":"1.0","type":"link"}