SKU: 40787662123

TOTO Aquia IV Dual Flush 1.28 and 0.9 GPF Toilet Tank Only with WASHLET+ Auto Flush Compatibility, Ebony, Vitreous China, ST446EMNA#51

Sale price$162.00 Regular price$180.00
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Description

TOTO Aquia IV Dual Flush 1.28 and 0.9 GPF Toilet Tank Only with WASHLET+ Auto Flush Compatibility, Ebony, Vitreous China, ST446EMNA#51TOTO Aquia IV Dual Flush 1. 28 and 0. 9 GPF Toilet Tank Only with WASHLET+ Auto Flush Compatibility, Ebony, Vitreous China, ST446EMNA#51 The TOTO Aquia IV Dual Flush 1. 28 and 0. 9 GPF Auto Flush Compatible Toilet Tank is designed for use with the Aquia IV dual flush bowl. The Aquia IV tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The Aquia IV tank features TOTO's Dual Max dual flush option, allowing you to

TOTO Aquia IV Dual Flush 1.28 and 0.9 GPF Toilet Tank Only with WASHLET+ Auto Flush Compatibility, Ebony, Vitreous China, ST446EMNA#51

The TOTO Aquia IV Dual Flush 1.28 and 0.9 GPF Auto Flush Compatible Toilet Tank is designed for use with the Aquia IV dual flush bowl. The Aquia IV tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The Aquia IV tank features TOTO's Dual-Max dual flush option, allowing you to proactively conserve water usage. The chrome center-mounted push button that sits atop the tank allows you to choose between a 0.9 GPF rinse or 1.28 GPF for tougher jobs. This version of the Aquia tank offers TOTO T40 WASHLET+ and Auto Flush compatibility for when you are ready to upgrade to a hands-free flush system with electronic bidet seat. The Aquia IV tank meets the standards for EPA WaterSense, and Californias CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts,and water supply lines.

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects, and other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Please see our color disclaimer.

Features


  • Aquia IV toilet tank for use with Aquia IV toilet bowl
  • Dual flush system allows you to proactively conserve water - Select 1.28 GPF or 0.9 GPF
  • Lid-top chrome dual flush push button
  • Auto Flush compataible
  • WaterSense, CALGreen, and CEC compliant
  • Included parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps
  • Purchased separately: Aquia IV bowl, wax ring, toilet mounting bolts, water supply lines, and optional WASHLET+ with Auto Flush kit

Details


Box Height: 17.5"
Box Length: 17.25"
Box Weight: 29 lb(s)
Box Width: 7.875"
Category: Tanks
Collection: Aquia
Color: Ebony
Country of Origin: USA
Flush Lever Location: Center
Item Height: 13.125"
Item Length (Front to Back): 6.375"
Item Weight: 29 lb(s)
Item Width (Side to Side): 15.5625"
Material: Vitreous China
SKU: ST446EMNA#51
Water Consumption (GPF): 0.9|1.28
WaterSense Compliant?: Yes

Warranty


Manufacturer One Year Limited
Toto Warranty Details (PDF)

Installation Instructions


Installation Instructions (PDF)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40787662123

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MB
Boise, US
★★★★★ 5
10/10 jeans
Size: 30W x 30L, Color: Medium Grey
Amazing jeans I love them awesome fit not too loose not too tight look great amazing deal right now on them too will be buying a different color pair soon
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Reviewed in the United States on June 9, 2026
I
Verified Purchase
Irwin Scharf
Battle Creek, US
★★★★★ 5
Great casual pants
Size: 38W x 29L, Color: Medium Grey
Very comfortable and material very durable
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Reviewed in the United States on April 27, 2026
R
Robert M
San Leandro, US
★★★★★ 5
Amazing fit, great quality material
Size: 30W x 32L, Color: Medium Grey, Size: 30W x 32L, Color: Medium Grey
I ordered this pair of denim pants in my usual size (30x32) and they fit amazingly. The cut is slim, but not overly tight. The material is the perfect thickness and seems to be of excellent quality, with a slight stretchiness to it. They are slightly softer than most denim pants I have worn. I am finding that they are great for both business casual settings with a button-up shirt and more informal "dress down" type situations with a t-shirt and sneakers. This is probably my favorite pair of jeans that I have gotten in at least a few years, and I would highly recommend overall.
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Reviewed in the United States on February 17, 2026
P
Paul C
New York, US
★★★★★ 4
Soft, comfortable fitting jeans
Size: 30W x 30L, Color: Black Rinse
Good quality and a great slim fit, but a bit expensive for a blend. Since they aren’t 100% cotton, they have a slight stretch that makes them more comfortable and softer than standard jeans. I’m happy with the look and feel, but I’ll have to see how they hold up over time.
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Reviewed in the United States on December 22, 2025
A
Armin B
Battle Creek, US
★★★★★ 5
Very nice and would highly recommend!
Size: 32W x 30L, Color: Medium Grey
The fit is exactly what I was looking for, slim without being too tight, and it fits true to size, so I get that modern look but still feel comfortable sitting or walking around all day. The denim feels soft yet sturdy, which makes me confident it’ll hold up well over time. I also love the classic 5-pocket design. It’s functional and keeps my essentials handy without adding bulk. The color holds up after a few washes, and there’s minimal fading so far, which is a big plus for me. Pairing these pants with a casual tee or a button-down is effortless, they easily transition from work to weekend vibes. For the price and quality, I feel like these are a solid addition to my wardrobe. Definitely recommend if you’re looking for a slim, comfortable, and versatile pair of jeans.
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Reviewed in the United States on February 13, 2026

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