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TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

by TOTO
SKU MW4483346CEMFGN#01
UPC/GTIN: 739268478466
$1,309.00
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Key Specs


  • Two-piece elongated toilet with integrated WASHLET+ connection
  • High-tech Electronic Bidet Seat and Toilet Combination
  • Dual Flush operation
  • Universal Height
  • 12" Rough-in (optional 10" & 14" rough-in)

Key Features


  • Concealed supply connection for seamless installation
  • DYNAMAX TORNADO FLUSH utilizes 360° cleaning power to reach every part of the bowl
  • CEFIONTECT ceramic glaze
  • QuietF Flush
  • Heated Seat

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

The TOTO Aquia IV Arc WASHLET+ S2 combines a modern dual-flush toilet with a comfortable, easy-to-use bidet seat. It features a sleek concealed connection design, heated seat, and adjustable warm water cleansing for everyday comfort. The S2 offers essential bidet functions without the complexity of higher-end models, making it a practical upgrade for most homes.

Perfect for those looking for a clean, minimalist toilet with reliable bidet features.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet Specifications and Features

  • Toilet and Washlet included
  • Minimizes waste from sticking to porous ceramic surfaces
  • Completely skirted design for a sleek and understated look 
  • Easy to clean
  • Non-clog 2.5" trapway with clear glaze coating
  • Quiet Flush
  • Elongated front WASHLET toilet seat with cover
  • EWATER+ auto cleans the wand
  • PREMIST the bowl before use
  • Convenient Arm Control Panel
  • Gentle Aerated, Warm Water, Dual Action Spray with oscillating and pulsating feature
  • Heated seat 
  • Warm air drying with three variable temperature settings
  • Quick-release feature
  • Chrome trip lever
  • Two-piece elongated toilet with integrated WASHLET+ connection
  • High-tech Electronic Bidet Seat and Toilet Combination
  • Dual Flush operation
  • Universal Height
  • 12" Rough-in (optional 10" & 14" rough-in)
  • Concealed supply connection for seamless installation
  • DYNAMAX TORNADO FLUSH utilizes 360° cleaning power to reach every part of the bowl
  • CEFIONTECT ceramic glaze
TOTO Aquia IV Arc WASHLET S2 Two-Piece Toilet White toilet on a white background

Adjustable Warm Water Wash with Gentle Cleansing Modes

The S2 WASHLET offers front and rear cleansing with adjustable water temperature, pressure, and spray position. It delivers a consistent and comfortable wash, making it ideal for everyday hygiene without complicated controls.

TOTO Aquia IV Arc WASHLET S2 Two-Piece Toilet  adjustable water spray

Efficient Dual Flush with Powerful Bowl Cleaning

This toilet uses a dual flush system to conserve water while maintaining strong performance. The flushing system creates a powerful swirl that cleans the bowl thoroughly with every use.

TOTO Aquia IV Arc WASHLET S2 Two-Piece Toilet  dual flush technology

Built-In Night Light for Added Convenience

A soft night light gently illuminates the bowl in low-light conditions, making nighttime use safer and more convenient without needing to turn on bright bathroom lights.

TOTO Aquia IV Arc WASHLET S2 Two-Piece Toilet  night light

PREMIST (Clean Synergy) with Self-Cleaning Wand System

The system automatically mists the bowl before each use to help prevent waste from sticking, working together with the self-cleaning wand that rinses before and after every use for improved hygiene.

TOTO Aquia IV Arc WASHLET S2 Two-Piece Toilet clean synergy

Frequently Asked Questions

  • Yes, the WASHLET S2 bidet seat requires a nearby GFCI electrical outlet to power features like the heated seat, warm water wash, and air dryer.

  • The dual flush allows you to choose between a lower flush for liquid waste and a higher flush for solid waste, helping save water without sacrificing performance.

  • Yes, the bidet wand automatically cleans itself before and after each use, and the bowl is pre-misted to help reduce waste sticking for better hygiene.

  • Absolutely. It features a heated seat with adjustable temperature settings, providing consistent comfort, especially during cooler conditions.

  • Yes, the S2 offers essential bidet features like warm water cleansing, heated seat, and dryer without the higher cost of advanced models, making it a great choice for first-time users.

Shipping Policy

We offer free standard shipping on all orders to the contiguous United States. Orders shipped to Alaska, Hawaii, Puerto Rico, or other U.S. territories are subject to additional shipping charges. Please contact us before placing your order for a custom shipping quote: info@bidetsusa.com or 877-420-3443.

Product Sourcing & Fulfillment

Bidets USA is an authorized retailer for every brand we carry. Products are sourced directly from our manufacturer partners and may ship from manufacturer or fulfillment warehouses. All products are brand new and include full manufacturer warranties. Orders with multiple items may ship separately with different tracking numbers.

Order Processing

Most orders are processed within 1–2 business days. After placing your order, you'll receive a confirmation email. You'll receive tracking information within 24 hours of shipment. If you don't receive tracking within 2 business days, please contact us at info@bidetsusa.com.

If you need to update your shipping address, contact us before shipment at info@bidetsusa.com or 877-420-3443.

Shipping Methods & Transit Times

Method Items Cost Transit Time
Standard (UPS/FedEx/USPS) Small packages Free 3–6 business days
LTL Freight Large items Free 3–6 business days

Freight (LTL) Delivery

Large items ship via LTL freight and are delivered curbside only. Freight carriers do not bring items inside your home, condominium, or apartment. Please arrange to have the item brought indoors upon delivery.

The freight carrier will contact you by phone or email to schedule your delivery appointment. Prompt response is required. If the carrier cannot reach you within 2 business days, daily storage fees may begin to accrue. If contact cannot be made within 7 days, the shipment will be rerouted back to our warehouse and your refund will be reduced by rerouting fees, accrued storage fees, and any additional carrier charges.

Tracking Your Order

Once your order ships, you'll receive a confirmation email with your tracking number. Orders with multiple items may ship separately with multiple tracking numbers. If you don't receive a tracking email, check your spam folder or contact us at info@bidetsusa.com.

Cancellations

Orders may be canceled before shipment at no charge. If your order has already shipped, please refer to our Refund & Return Policy.

Damaged Items

Please inspect your order carefully before signing for delivery.

  • Freight (LTL) shipments: Report any damage within 48 hours of delivery.
  • Small parcel shipments: Report any damage within 15 days of delivery.

If you notice damage before signing, refuse the delivery and contact us immediately. If damage is discovered after delivery and reported within the applicable window above, we will arrange a replacement at no cost to you. Please email clear photos of the damage to info@bidetsusa.com.

Contact Us

Bidets USA
9700 Del Rio Dr, Lincoln, NE 68516
info@bidetsusa.com
877-420-3443

Return Policy

We understand that sometimes things don't work out as planned. That's why Bidets USA offers a straightforward 30-day return policy from the date of delivery for orders that qualify for a return.

To qualify for a return, items must be new, unopened, unused, and uninstalled. Due to the hygienic nature of bidet products, we cannot accept returns on any bidet seats, attachments, or integrated toilets once the packaging has been opened, installed, or connected to water.

All returns must include original packaging, parts, accessories, manuals, and warranty cards to be accepted.

Return Window: 30 days from delivery date for eligible returns

Getting Started with a Return

Before shipping anything back, you must contact our team to obtain a Return Merchandise Authorization (RMA) number.

Contact us at:

  • Email: info@bidetsusa.com
  • Phone: (877) 420-3443

We'll verify your return qualifies and provide you with:

  • Your unique RMA number
  • Return shipping address
  • Detailed return instructions

Inspect Your Delivery

Please examine your order immediately upon arrival and before signing for delivery.

If you notice visible damage:

  • Take photographs of the damage and packaging
  • Refuse the delivery if any damage
  • Contact us right away at info@bidetsusa.com

Cancellations

Order not yet shipped:

  • Contact us immediately to cancel and get full refund.

Return Shipping Costs

  • We provide a fully paid return shipping label at no cost to you

How you'll receive your label:

  • Email: Label sent to the email address you provide
  • No email: We'll mail the physical label to your shipping address

Restocking Fees

  • 15% restocking fee but there is no restocking fee for returns due to our error

Refunds

Refunds are issued only to the original payment method used for your purchase.

Exchanges

Need a different model or size? We're happy to help.

To initiate an exchange:

  1. Contact us at info@bidetsusa.com or call (877) 420-3443
  2. Obtain an RMA number for your exchange
  3. Items must be unopened, unused, and in original packaging with all components

Damage and Defects After Installation

All products carry manufacturer warranties.

If you discover a defect after installation:

  • Contact us at info@bidetsusa.com with your order details
  • Provide a description and photos/video of the issue
  • We'll help you troubleshoot or connect you with the manufacturer for warranty service

Contact Information

For all return and refund inquiries:

Bidets USA
Email: info@bidetsusa.com
Phone: (877) 420-3443
Address: 9700 Del Rio Dr, Lincoln, NE 68516


Return and Refund Policy Updated: April 2026

Bidets USA BBB Business Review