The TOTO WASHLET G5A Lite Integrated Smart Toilet combines a compact, skirted one-piece design with TOTO's most advanced hygiene and comfort technologies. Built around the high-efficiency TORNADO FLUSH system at 1.2 GPF / 1.0 GPF and protected by CEFIONTECT ceramic glaze, the bowl stays cleaner longer with minimal maintenance. The integrated WASHLET top unit brings EWATER+ self-cleaning wand technology, PREMIST bowl misting, an instantaneous water heater for continuous warm water, a heated seat, warm air dryer, automatic deodorizer, and a multifunction remote with four-user memory — all in a seamless, gap-free design. Universal Height and ADA compliant, the G5A Lite delivers professional-grade hygiene and a clean, modern aesthetic suited to any bathroom.
Features
- CEFIONTECT ceramic glaze minimizes waste adhesion on porous ceramic surfaces, keeping the bowl cleaner between uses.
- High-efficiency TORNADO FLUSH system uses 360-degree rim-free cleaning power at 1.2 GPF / 1.0 GPF (4.5 LPF / 3.8 LPF).
- Auto flush with backup manual flush ensures full operation during power outages.
- Universal Height, ADA compliant design provides accessible comfort for all users.
- Touchless auto open and close lid activates hands-free for maximum hygiene.
- EWATER+ technology automatically sanitizes the wand with electrolyzed water before and after every use.
- PREMIST automatically coats the bowl with water before each use to help prevent waste from sticking.
- CLEAN RESIN material keeps the wand and seat more hygienic and effortless to maintain.
- Gentle aerated warm water front and rear spray with oscillating and pulsating modes delivers thorough, personalized cleansing.
- Adjustable spray position, water temperature, and pressure adapt to each user's preference.
- Instantaneous water heater provides continuous warm water without stored heating, reducing standby energy use.
- Warm air dryer with three temperature settings (95°F to 140°F) reduces reliance on toilet paper.
- Automatic air deodorizer with O2 purification neutralizes odors continuously without refills.
- Multifunction remote control stores personalized settings for up to four users.
- Heated seat with adjustable surface temperature from 82°F to 97°F provides year-round comfort.
- Seamless seat design eliminates the gap where dirt collects for easier cleaning.
- CLEAN LIFT mechanism allows easy access between the top and bowl unit for deep cleaning.
- Automatic and programmable energy saving systems reduce standby power consumption.
Specifications
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Model: MS7421CEMFG#01
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Kit Components: WASHLET G5A Lite Top Unit (SN7421M) + Elongated Bowl (CT7421CEMFG)
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Bowl Shape: Elongated
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Installation Type: One-piece integrated smart toilet
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Color/Finish: Cotton White
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Rough-In: 12 in.
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Dimensions: 28-3/4 in. L x 17-5/16 in. W x 22-3/8 in. H
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Water Use: 1.2 GPF / 1.0 GPF (4.5 LPF / 3.8 LPF)
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Flush System: TORNADO FLUSH
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Water Pressure: 7.25 PSI min (flowing) / 108.75 PSI max (static)
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Water Surface: 8-5/8 in. x 7-1/4 in.
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Trap Diameter: 2 in. (51 mm)
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Trap Seal: 2-1/8 in. (54 mm)
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Material: Vitreous China bowl; Plastic seat and cover
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Power Requirements: AC 120V, 60 Hz, 1,276W
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Power Cord Length: 3.9 ft (1.2 m)
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Spray Volume: 0.07 to 0.11 gal/min (rear); 0.08 to 0.11 gal/min (front)
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Washing Temperature: 95°F to 104°F (35°C to 40°C)
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Seat Temperature: 82°F to 97°F (28°C to 36°C)
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Dryer Temperature: 95°F to 140°F (35°C to 60°C)
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Seat Heater Capacity: 50W
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Shipping Weight: 18 lbs (top unit) + 81 lbs (bowl unit)
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Certifications: IAPMO (cUPC), ADA Compliant, WaterSense, UPC / IPC / NSPC
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Warranty: One year limited
Installation Notes
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Rough-in: 12 in. standard rough-in required. Not compatible with 10 in. or 14 in. rough-ins.
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Electrical: Requires a dedicated, grounded GFCI outlet (30 mA or less) rated AC 120V / 60 Hz. The outlet must be within 3.9 ft (1.2 m) of the toilet. Do not install the outlet directly beneath the water supply location.
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Water supply: Compatible with floor or wall water supply connections. Minimum flowing pressure: 7.25 PSI. Maximum static pressure: 108.75 PSI.
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Installation sequence: The WASHLET top unit (SN7421M) is installed first. The bowl unit (CT7421CEMFG) is then installed following the separate bowl installation manual included in the kit.
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First flush calibration: On the first full flush, the system automatically measures the water volume in your supply environment and sets the optimal flush volume. Do not interrupt this initial flush cycle.
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Extended non-use: If the toilet will not be used for an extended period, turn off power at the breaker and remove batteries from the remote control to prevent leakage.
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Professional installation required: Installation must be performed by a licensed plumber and licensed electrician. Improper installation may void the warranty.
Frequently Asked Questions
What rough-in size does the TOTO G5A Lite require?
The G5A Lite requires a standard 12-inch rough-in. It uses a modular 12-inch rough-in system and is not compatible with 10-inch or 14-inch rough-ins without an adapter.
Does the TOTO G5A Lite need a special electrical outlet?
Yes. It requires a dedicated, grounded GFCI outlet (30 mA or less) rated for AC 120V / 60 Hz. The outlet must be positioned within 3.9 ft (1.2 m) of the toilet. Professional installation by a licensed electrician is strongly recommended to meet local code requirements.
How much water does the G5A Lite use per flush?
The G5A Lite offers dual flush: 1.2 GPF (4.5 LPF) for a full flush and 1.0 GPF (3.8 LPF) for a reduced flush. It is WaterSense certified, meaning it meets the EPA's standards for water efficiency without compromising performance.
Is the TOTO G5A Lite ADA compliant?
Yes. The G5A Lite is built to Universal Height standards and is certified ADA compliant, making it comfortable and accessible for users of all ages and mobility levels.
What is included in the MS7421CEMFG#01 kit?
The kit includes the WASHLET G5A Lite top unit (SN7421M) and the elongated vitreous china bowl (CT7421CEMFG), along with the water supply hose assembly, mounting hardware, multifunction remote control, and all required installation components. Both the top unit and bowl installation manuals are included.
Does the toilet work during a power outage?
The G5A Lite includes an auto flush system with a backup manual flush, so the toilet can be flushed without power. The WASHLET bidet functions — water spray, heated seat, warm air dryer, and deodorizer — require electrical power to operate.
What makes the TOTO G5A Lite bowl easier to clean?
The bowl is coated with TOTO's CEFIONTECT ion-barrier glaze, which creates an ultra-smooth, dense ceramic surface that prevents waste, bacteria, and mold from adhering. Combined with the TORNADO FLUSH system's 360-degree rim-free cleaning action, the bowl stays visibly clean with minimal effort.
Manuals/Downloads
Specification Sheet
Installation Manual — Bowl Unit (CT7421CEMFG)
Installation Manual — Top Unit (SN7421M)
Owner's Manual
Warranty
1-year limited warranty
