The distance from the toilet tank to the front end of the toilet: > 19.29in B. The distance from the toilet tank to the mounting hole: > 1.1in C. The distance from the center of the mounting hole to the center: 4.53in. Toilet Seat with Adjustable Water Temperature- Electric Smart Bidet Seat. An electric bidet can be convenient for you and the elderly, women, and children in your family. Our product is made of high-quality ABS, ensuring high durability. Build to Last: This product is made of high-quality ABS, so it has high hardness, corrosion resistance, and rust resistance and it can be adapted in some humid environments, such as toilets. Thoughtful Design: With the product’s included control panel and built-in heater, you can easily adjust the cleaning water temperature (off, 91.4°F, 96.8°F, 104°F) and four cleaning positions! Life Helper: It features a massage function as well as a night light for a more comfortable experience for you and the elderly at home. In addition, the 1300W flushing power, vibrating flush, automatic deodorizing function, and self-cleaning nozzle will keep your toilet clean and hygienic. Enjoy Intelligent: With the control panel and built-in heater, you can easily adjust the cleaning water temperature (off, 91.4°F, 96.8°F, 104°F) and cleaning positions! High Safety: Float switch, temperature sensor, IPX4 waterproof, thermal fuse, and anti-leakage protection allow you and your family to use this product with peace of mind. Simple Installation: All you need to do is remove the original toilet seat and replace it, then connect the tank water supply with the included fittings and power supply by yourself. Space-saving: Because the product is mounted directly to the toilet, it won’t take up any other space in your restroom. Ideal Gift: This stylish and practical product is a thoughtful gift to your parents, friends, and loved ones for housewarmings, birthdays, and holidays. Customer Service: We aim to provide quality products and services. We will reply and solve the problem for you as soon as possible. Long Power Cord: It comes with a long electrical cord (4.92ft) for added convenience and extraordinary mobility. Water Inlet Tube : The 31.5-inch water inlet tube allows you to easily connect to the water source. It can be used in homes, bedrooms, companies, and hotels in the toilet, suitable for the elderly, children, and women. The distance from the toilet tank to the front end of the toilet: > 19.29in. The distance from the toilet tank to the mounting hole: > 1.1in. Power Source: Corded Electric. Plug Standard: US Standard. Number of Items:? 1. Water Pressure: 0.08 to 0.75 Mpa(0.8-7.5kgf/c?). Water Flow Rate: Wash: Max 0.8L/27.05oz/min, Bidet: Max 0.95L/32oz/min. Temperature Control: 4-step Adjustment (OFF, 33? /91.4°F, 36? /96.8°F, 40? /104°F). Tank Capacity: 0.55L/18.6oz. Warm Air Power: 250W. Temperature Control: 32? -48? /89.6°F-118.4°F. Power Cord Length: 1.5m/4.92ft. Gross Weight: 5.47kg/12.06 lbs. Package Size: 492156cm/19.298.2722.05in. Product Size: 465114cm/18.1120.085.51in. Size of each port of the three-way valve: 1/2. 1 Water Inlet Tube. Other Accessories for Assembly. Please note that the mounting dimensions of the product require floating space. Please read the user manual carefully before use and pay special attention to the safety tips inside. Please note that this product cannot be installed on square toilets. This product is suitable for vertical water tanks and toilets with water tanks that bend backward. Whether the toilet with a forward curvature of the water tank can be installed depends on the size of the curvature. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before ordering. Kindly reminder:it has this beep function when you sit or get up from the toilet, besides, it without a silent mode. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.