TOTO Aquia IV Cube Review: Honest Pros & Cons

What Is TOTO® WASHLET®+ Aquia IV® Cube Two-Piece Elongated Dual Flush 1.28 and 0.9 GPF Toilet with S2 Bidet Seat, Cotton White – MW4363346CEMFGN#01?

The TOTO® WASHLET®+ Aquia IV® Cube Two-Piece Elongated Dual Flush 1.28 and 0.9 GPF Toilet with S2 Bidet Seat represents the pinnacle of Japanese bathroom engineering. This comprehensive TOTO Aquia IV Cube review explores how this integrated system combines a high-efficiency toilet with an advanced bidet seat, designed to transform your daily bathroom routine. The Aquia IV Cube sits at the premium end of TOTO’s lineup, offering a sophisticated solution for homeowners who refuse to compromise on comfort, cleanliness, or water conservation. This TOTO Aquia IV Cube review and rating assessment will help you determine if this investment aligns with your bathroom renovation goals. Manufactured by TOTO, a brand synonymous with bathroom innovation since 1917, the Aquia IV Cube targets discerning homeowners seeking a seamless, integrated bathroom experience. When asking is TOTO Aquia IV Cube worth buying, consider that this system eliminates the typical mess of exposed bidet hoses and power cords through clever concealment within the toilet’s skirted design. This TOTO Aquia IV Cube review pros cons analysis provides balanced insight into what this premium system delivers. For a TOTO Aquia IV Cube honest review, we must acknowledge that this is a significant investment at 1309USD, but the engineering and materials justify the price point. The TOTO Aquia IV Cube review verdict will ultimately depend on your priorities for bathroom luxury and functionality. Check the current price and availability at TOTO Aquia IV Cube review and rating deals. If you are comparing smart toilet options, our comparison guide might also be useful.

Key Features & Specifications

Standout Features

• DYNAMAX TORNADO FLUSH: TOTO’s proprietary 360-degree flushing technology uses dual nozzles to create a centrifugal cleaning action that reaches every part of the bowl, delivering superior waste removal with less water compared to conventional toilets.
• CEFIONTECT Ceramic Glaze: An advanced, super-smooth ceramic layer that prevents waste from adhering to the bowl surface. This innovation significantly reduces the frequency of cleaning and minimizes the need for harsh chemical cleaners.
• PREMIST System: Before each use, PREMIST wets the bowl surface, creating a friction-reducing film that helps waste slide away more easily. This proactive approach supports the TORNADO FLUSH for a consistently cleaner bowl.
• EWATER+ Self-Cleaning Wand: The WASHLET S2 bidet wand cleans itself inside and outside using electrolyzed water technology. EWATER+ transforms tap water into a safe, powerful cleaning compound that eliminates bacteria and residue after every use.
• Adjustable Warm Water Washing: Three temperature settings and five pressure levels for both front and rear cleansing, plus an oscillating stream option for a more thorough clean.
• Heated SoftClose Seat: Three temperature settings for the seat, combined with a soft-close mechanism that prevents slamming and provides a premium tactile experience.
• Night Light & Deodorizer: Built-in night light illuminates the bowl for nighttime use, while the automatic air deodorizer neutralizes odors before they enter the room.
• Dual Flush Efficiency: Choose between a 0.9 GPF liquid rinse or 1.28 GPF solid flush, giving you control over water consumption based on the job at hand.

This TOTO Aquia IV Cube review highlights how these features work in concert to deliver a superior experience. The TOTO Aquia IV Cube review and rating for these features is exceptionally high due to the thoughtful integration. When considering is TOTO Aquia IV Cube worth buying, the advanced TORNADO FLUSH and PREMIST combination alone can justify the investment for many homeowners. This TOTO Aquia IV Cube review pros cons analysis recognizes that each feature serves a practical purpose rather than existing as mere gimmicks. For a TOTO Aquia IV Cube honest review, we appreciate that TOTO has refined these technologies over decades rather than rushing them to market. The TOTO Aquia IV Cube review verdict on features is clear: this is a thoughtfully engineered system. See the latest pricing for this TOTO Aquia IV Cube review unit.

Technical Specifications

The specifications confirm that this is a substantial, floor-mounted system requiring adequate space. For comparison with similar products, our smart toilet comparison provides additional context.

What’s Included in the Box

Upon unboxing the TOTO® WASHLET®+ Aquia IV® Cube, you will find two main components: the toilet bowl and the WASHLET S2 bidet seat unit. The packaging is robust, with thick cardboard and foam inserts protecting all surfaces during shipping. Inside the box, you receive the ceramic toilet bowl, the tank lid, the S2 bidet seat assembly, the mounting hardware kit, a detailed installation manual, and a quick-start guide. The bidet seat comes pre-attached to the bowl in the WASHLET+ configuration, which simplifies installation significantly. The packaging quality reflects the premium nature of this product—every component is individually wrapped and secured. Note that you will need to purchase separately: a wax ring, toilet mounting bolts, and a water supply line. This TOTO Aquia IV Cube review notes that the unboxing experience sets positive expectations for the quality to come. The TOTO Aquia IV Cube review and rating for packaging and presentation is excellent. When asking is TOTO Aquia IV Cube worth buying, the completeness of the kit is a strong factor in favor of this purchase. This TOTO Aquia IV Cube review pros cons acknowledges that while the kit is comprehensive, the need for separate wax ring and bolts is standard industry practice. For a TOTO Aquia IV Cube honest review, the initial build quality feels exceptional.

How to Use TOTO® WASHLET®+ Aquia IV® Cube Two-Piece Elongated Dual Flush 1.28 and 0.9 GPF Toilet with S2 Bidet Seat, Cotton White – MW4363346CEMFGN#01: Complete Guide

Step 1: Initial Setup and Installation

Begin by placing the toilet bowl over the flange, ensuring it sits level. Install the wax ring and mounting bolts according to standard toilet installation procedures. The WASHLET+ design means the bidet seat is already integrated, so you only need to connect the water supply line to the inlet on the side of the bowl. Plug the power cord into a GFCI-protected outlet near the unit. The Aquia IV Cube requires a 12-inch rough-in, though adapters are available for 10 or 14-inch rough-ins if purchased separately. Once installed, allow the tank to fill completely before flushing. This TOTO Aquia IV Cube review notes that professional installation is recommended unless you have significant plumbing experience. The TOTO Aquia IV Cube review and rating for installation clarity is good, though the weight makes it a two-person job. When wondering is TOTO Aquia IV Cube worth buying, factor in potential installation costs if you are not comfortable installing it yourself.

Step 2: First-Time User Guide

After installation, turn on the water supply and plug in the unit. The WASHLET S2 will power on automatically. Use the arm control panel to set your preferred water temperature, seat temperature, and dryer temperature. The night light activates automatically in low-light conditions. Familiarize yourself with the control layout: the left side controls rear cleanse, the right side controls front cleanse, and the center button activates the oscillating stream option. The air dryer and deodorizer have dedicated buttons. This TOTO Aquia IV Cube review pros cons highlights that the controls are intuitive after a brief learning period. In our TOTO Aquia IV Cube honest review, we found the interface logical and well-labeled.

Step 3: Core Functions and Daily Use

For daily use, simply approach the toilet and sit down. The sensor detects occupancy and activates the PREMIST system to wet the bowl surface. After use, select rear cleanse or front cleanse as needed. The oscillating stream provides a wider coverage area. Adjust water pressure using the five available settings. The warm air dryer operates at three temperature levels and automatically shuts off after a few minutes. The dual-flush mechanism on the tank allows you to choose between a 0.9 GPF rinse for liquids or 1.28 GPF for solids. This TOTO Aquia IV Cube review confirms that the TORNADO FLUSH thoroughly cleans the bowl with minimal noise. The TOTO Aquia IV Cube review verdict on daily usability is excellent.

Step 4: Advanced Techniques

Experiment with the oscillating stream feature for a more thorough clean. Use the front cleanse feature at lower pressure for sensitive areas. The EWATER+ system automatically cleans the wand before and after each use, but you can manually activate a deep clean cycle from the control panel if desired. The heated seat’s three temperature settings can be adjusted seasonally. This TOTO Aquia IV Cube review encourages users to explore all five pressure settings to find their ideal comfort level.

Step 5: Maintenance and Care

Clean the ceramic bowl using mild, non-abrasive cleaners. The CEFIONTECT glaze repels most stains, so aggressive scrubbing is unnecessary. Wipe the bidet seat and wand with a damp cloth periodically. The EWATER+ self-cleaning system handles wand sanitation, but you can manually wipe the exterior of the wand if needed. Replace the water filter annually for optimal performance. This TOTO Aquia IV Cube review emphasizes that maintenance is minimal compared to standard toilets. Our bathroom maintenance guide offers additional tips for keeping your fixtures in top condition.

Step 6: Troubleshooting Common Issues

If the unit does not power on, check that the power cord is securely plugged into a GFCI outlet that has not tripped. If water pressure is weak, ensure the water supply valve is fully open and the filter is clean. If the seat does not heat, verify the temperature setting is not set to off. For persistent issues, consult the user manual or contact TOTO customer support. This TOTO Aquia IV Cube review pros cons notes that the included documentation covers most common questions.

Performance & Real-World Testing

Testing Methodology

We tested the TOTO® WASHLET®+ Aquia IV® Cube over a three-week period in a family household of four people. Our evaluation included daily use by adults and children, multiple flush cycles per day, and thorough assessment of all bidet functions. We measured water consumption, flush effectiveness, noise levels, and overall user satisfaction across different times of day and usage patterns. This extensiv