TOTO WASHLET A2 Electronic Bidet Toilet Seat (SW3004#01) review (2026)
- Elongated fit only — model SW3004#01, Cotton White
- Reservoir (tank-type) water heating — warm water lasts roughly 40–60 seconds before cooling
- Three water temperature settings, five pressure settings; spray range 95–104°F
- Heated seat with three temperature settings (82–97°F surface)
- Side-mounted arm control panel — no separate remote included
- SoftClose lid and seat; self-cleaning wand rinses before and after each use
- No warm-air dryer, no deodorizer, no PREMIST, no night light — purely the wash + seat heat basics
- 287W standard / 363W peak; 120V / 10A; 3.93 ft power cord; 1-year limited warranty
The TOTO WASHLET A2 (model SW3004#01) is the entry point into TOTO's electric bidet seat lineup — a brand that has been making washlets since the early 1980s and built a global reputation for durable, reliable seats. At street prices between roughly $250 and $420 depending on the retailer, the A2 sits well below TOTO's mid-range C5 and premium S-series, which run $500–$1,400+. What you get is the same Japanese engineering DNA in a stripped-down package: rear and front warm-water cleansing, a heated seat with a soft-close lid, and a self-cleaning wand — nothing more, nothing less.
The A2 uses a reservoir heating system, which means a small internal tank warms a fixed supply of water. That works fine for a normal-length wash but does have a ceiling: continuous use beyond roughly 40–60 seconds will eventually pull water from outside the warm tank. For most people this never becomes an issue. Where the A2 more noticeably cuts corners compared to pricier TOTO models: there is no warm-air dryer (you will still need toilet paper or a separate towel to dry off), no deodorizer, no PREMIST bowl coating, and no user presets for households with multiple people. These are not hidden gotchas — they are deliberate trade-offs that keep the price down. If you can live with them, the A2 delivers the part of the bidet experience that actually matters — a comfortable, hygienic wash — at a price that is hard to argue with.
This review draws on TOTO's published specifications, the official spec sheet for the SW3004, retailer listings, and patterns found across verified owner reviews on Amazon, Home Depot, Wayfair, and specialist bidet retailers. We do not claim hands-on lab testing of this specific unit.
Features & performance
Warm-Water Wash — Rear and Front Modes
The A2 delivers warm, aerated water for both rear cleansing and front cleansing (bidet mode). TOTO's aerated stream mixes tiny air bubbles into the water, which makes the spray feel softer and wider than a non-aerated wand — a signature characteristic of the brand. You get five pressure levels and three temperature settings (water spray surface temp 95–104°F / 35–40°C). The rear wash also includes an oscillating stream mode that moves the nozzle back and forth automatically. Spray volume for rear cleanse runs 0.07–0.11 gal/min; front cleanse is 0.08–0.11 gal/min — both on the gentler end of the market, which owners generally appreciate.
Reservoir (Tank-Type) Heating
The A2 heats water using a small internal reservoir tank. The practical effect: the first 40–60 seconds of your wash will be comfortably warm; extended use past that point may start to pull cooler water as the tank catches up. For a typical wash session this is rarely a problem — most people finish well inside that window. Where it matters is if you share one bathroom with someone who uses the seat immediately after you, or if you tend to run long sessions. TOTO's mid-range C5 and above use the same tank system; only the pricier S5 and S7 series move to instantaneous (tankless) heating. This is a real limitation worth knowing up front, not a reason to avoid the seat for most buyers.
Heated Seat with SoftClose Lid
The seat surface heats to 82–97°F (28–36°C) across three settings. In practice, owners consistently call this one of the most immediately appreciated features — especially in cold climates or drafty bathrooms where a cold toilet seat is an everyday annoyance. The SoftClose lid and seat close gently on their own; no slamming. The lid does NOT open or close automatically (that feature is reserved for the S-series). The quick-release docking station lets you pop the seat off the toilet for cleaning underneath — a practical detail that owners note makes hygiene maintenance straightforward.
Self-Cleaning Wand
Before and after every use, the wand rinses itself automatically. The wand resin is designed to repel residue. Nozzle position is adjustable to dial in personal aim. These are hygiene features that matter: a wand that sits exposed without self-cleaning is a maintenance problem over time. The A2 handles this correctly. What it does not have is TOTO's EWATER+ (electrolyzed water misting) found on higher-tier models — that system sprays a mild oxidizing mist onto the bowl and wand for added antimicrobial protection. At this price point, the basic pre/post rinse cycle is adequate for most households.
Side-Arm Control Panel
All settings — wash mode, water temp, water pressure, oscillation, seat temp, and stop — are accessible from a panel that attaches to the right side of the seat. Buttons are illuminated for low-light use. There is no separate remote control packaged with the A2; the arm panel is the only interface. This is a real usability trade-off compared to models with a wireless remote (which can be mounted to the wall and reached without twisting). Owners with limited mobility or who prefer not to reach to the side have noted this as a friction point. That said, the panel layout is straightforward and most people adapt quickly.
Energy-Saving Mode
The A2 includes a learning energy-save mode that monitors your usage schedule and reduces power consumption during periods you are typically not using the bathroom. Seat heat and tank heating drop to lower standby levels automatically. This matters practically: an electric bidet runs 24/7 unless you unplug it, and the A2 draws up to 363W at peak. The energy-saving mode meaningfully cuts your electricity draw over time. TOTO does not publish exact consumption figures by mode in widely available documents, but reviewers of similar TOTO seats estimate average daily consumption of 0.1–0.3 kWh depending on usage frequency and settings.
Build Quality and Installation
Installation is a standard electric bidet setup: you need a nearby GFCI grounded outlet and access to the cold-water supply line. The seat ships with mounting hardware and a T-adapter. Most owners report a straightforward DIY install in 15–30 minutes. The unit measures approximately 20-15/16" L x 18-5/8" W x 6-5/8" H and fits standard elongated toilets. Build quality is what you expect from TOTO — durable plastics, tight tolerances, no cheap-feeling flex. The 1-year limited warranty is the standard floor for this category, though owners who have used TOTO seats for years generally report long service lives well past the warranty window.
Pros
- Genuine TOTO build quality at the lowest price point in the lineup — a known, trusted brand with decades of washlet experience
- Aerated warm-water stream is noticeably softer and more comfortable than non-aerated competitors at similar prices
- Heated seat with three settings is consistently praised as a daily-use quality-of-life upgrade
- SoftClose lid, quick-release docking for cleaning, and self-cleaning wand are practical hygiene and maintenance wins
- Energy-saving mode reduces standby power draw without any manual management
- DIY installation is genuinely manageable for most homeowners — no plumber required
- Side-arm control is simple and reliable — no app, no pairing, no connectivity issues
Cons
- No warm-air dryer — you will still need toilet paper or a cloth to dry after washing, which undermines the full bidet-replaces-TP promise for some buyers
- Reservoir tank heating has a finite warm-water window (~40–60 seconds); back-to-back users may get a shorter warm spray
- No deodorizer, no PREMIST bowl mist, no EWATER+ wand treatment — all reserved for higher TOTO tiers
- Elongated fit only — no round-bowl version available; incompatible with smaller bathrooms that have round toilets
- Side-arm panel only — no wireless remote means reaching to the right side every time, which some find uncomfortable
- No user memory presets — every household member adjusts settings manually on the arm panel
- 3.93 ft power cord may require an extension or outlet relocation in some bathroom layouts
What owners say
Owners praise
- Easy, fast installation — multiple owners mention being up and running in under 30 minutes with standard tools
- The heated seat alone makes it feel worth buying — especially appreciated in winter months
- Warm, aerated spray feels surprisingly comfortable and effective for a first-time bidet user
- Quiet, smooth SoftClose lid is a daily quality-of-life improvement over a standard seat
- Long-term TOTO owners replacing older washlets report the A2 matches or exceeds the build quality of earlier models that lasted 15+ years
Common complaints
- No air dryer is a genuine inconvenience — some owners expected drying to be included and were disappointed when it was not
- The warm water does not last indefinitely; some owners notice cooling if they take their time or if the seat was used recently by someone else
- Arm panel placement requires an awkward reach-to-the-right motion that some users find uncomfortable, particularly those with back or hip issues
- A few owners note the seat profile sits slightly higher or bulkier than their previous non-electric seat, which can feel different on shorter toilets
- One-year warranty feels short for a $300+ fixture; some owners wish TOTO backed this tier the same way it backs its higher models
Who it's for
Buy it if: ">First-time electric bidet buyers who want a proven brand without over-spending. Households where one person at a time uses the bathroom (reservoir heating is a non-issue). Anyone upgrading from a basic non-electric bidet attachment who wants warm water and a heated seat. People in colder climates where a heated seat is a genuine daily benefit. Anyone who values straightforward operation with zero connectivity setup.
Skip it if: ">Buyers who want a full no-paper experience — without an air dryer, you will still use toilet paper. Households with multiple back-to-back users who will drain the warm-water tank. Anyone with a round toilet bowl — there is no round version of the A2. Buyers who want a wireless remote or multi-user memory presets. Anyone stretching budget to TOTO's level who primarily wants the dryer and EWATER+ features — at that point, the TOTO C5 or S5 is the correct seat to save for.
Alternatives to consider
- TOTO WASHLET C5 (SW3084). Step up within the TOTO lineup: adds PREMIST bowl spray, EWATER+ wand cleaning, and a wireless remote — still uses tank heating, ~$500–$550 street
- Bio Bidet Bliss BB-2000. Competing brand with hybrid instantaneous heating (unlimited warm water), stainless steel nozzle, air dryer, and remote at a similar or lower price point — less brand prestige but more features per dollar
- Brondell Swash LT89. Slimmer form factor, instantaneous heating, and air dryer at a lower price than the A2's MSRP — good for buyers where unlimited warm water and drying are the priorities and TOTO brand loyalty is not a factor
Our verdict
Frequently asked questions
Does the TOTO Washlet A2 come with a remote control?
No. The A2 is controlled entirely through the side-mounted arm panel attached to the right side of the seat. There is no wireless remote included or available as an add-on for this model. If a wall-mounted wireless remote is important to you, look at the TOTO C5 or higher.
Will the warm water run out during a normal wash?
For a typical wash session of 30–45 seconds, no — the reservoir tank keeps up fine. If you use the seat for an extended session (60+ seconds), or if someone else used it right before you, the warm supply can start to cool as the tank refills and reheats. It is not a sudden cold shock; it gradually cools. For back-to-back household use, budget 10–15 minutes for the tank to fully reheat.
Does the A2 fit a round toilet?
No. The SW3004#01 is elongated-only. TOTO does not offer a round-bowl version of the A2. If you have a round toilet, the TOTO KC2 is the recommended entry-level TOTO alternative, or you can consider Brondell or Bio Bidet models that offer round configurations.
Is the TOTO Washlet A2 easy to install yourself?
Yes, for most homeowners. You need a grounded GFCI outlet within about 4 feet of the toilet (the power cord is 3.93 ft), access to the cold-water supply line under the tank, and basic hand tools. The seat ships with a T-adapter and mounting hardware. Most owners report completing installation in 15–30 minutes. If your bathroom does not have a nearby outlet, you may need an electrician to add one before installing.
Why does the A2 cost less than other TOTO Washlets but MSRP is still $567?
TOTO's MSRP is a list price that most buyers never pay. Street prices from authorized dealers typically run $250–$420 depending on the retailer and current promotions. The A2 is the stripped-down entry model — it cuts the dryer, deodorizer, PREMIST, EWATER+, and wireless remote to get there. The MSRP reflects TOTO's premium positioning; the actual price you will pay is considerably lower at most reputable bath-fixture retailers and on Amazon.
What toilets is the TOTO Washlet A2 compatible with?
The A2 fits most standard elongated two-piece and one-piece toilets. The mounting system uses a standard top-mount bolt pattern. TOTO recommends verifying the rim shape and distance from the seat bolt holes to the front edge before purchasing. It is not compatible with D-shaped bowls, French-curve bowls, or integrated bidet-toilet units. TOTO's compatibility checker on their website can confirm fit for specific toilet models.