TOTO AC Powered 0.5 GPM 10 Sec...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,710.06
TOTO AC Powered 0.5 GPM 10 Second On-Demand Water Supply Heater and Controller for Touchless Spouts - REAH03B1U

TOTO AC Powered 0.5 GPM 10 Second On-Demand Water Supply Heater and Controller for Touchless Spouts - REAH03B1U

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Model: REAH03B1U
From the Controller Valve Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,710.06
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The TOTO AC Powered 0.5 GPM 10 Second On-Demand Water Supply Heater and Controller for Touchless Spouts is designed for use with compatible TOTO spouts. This integrated hot water system and touchless faucet controller allows you to consolidate faucet devices into one unit. Power saving features find a time when hot water usage is low and saves energy. The 0.5 GPM 10 second on-demand controller uses only 0.08 gallons per cycle and is CEC and CALGreen compliant. The on-demand system means that water flows only when needed and cannot be accidentally left running. When hands are present, the water will flow, and when hands are removed, the water will stop. Included: controller and mounting hardware. Purchased separately: compatible spout, water supply line for G1/2 connection

Features

  • Integrated hot water system and touchless faucet controller
  • Power saving features find a time when hot water usage is low and saves energy
  • Equipped with a 0.5 GPM water-saving flow rate
  • 10 second on-demand water flow; uses only 0.08 gallons per cycle
  • Water flows only when needed and cannot be accidentally left running
  • Included: controller and mounting hardware.
  • Purchased separately: compatible TOTO spout, water supply line for G1/2 connection

Manufacturer Resources

Spec Sheet

Product Specs

Connection Size and Type:
G 1/2
Product Type:
Commercial
Collection:
Controller Valve
Product Group:
Washroom/Bath
Product Subgroup:
Controller Valve
Product Length:
5.125
Product Height:
11
Product Weight:
9
Product Width:
8.25
Department:
Plumbing

TOTO REAH03B1U – Frequently Asked Questions

1) Does the TOTO REAH03B1U come with a spout, or do I need to order the faucet separately?
The REAH03B1U ships as the controller unit plus mounting hardware only. You order the compatible TOTO touchless spout separately, and you also supply the water line for the G 1/2 connection. Budget the job for three line items: controller, spout, supply line.
2) What supply connection does this TOTO on-demand water heater controller use?
The inlet is a G 1/2 (BSPP half-inch) connection, so you need a supply line or adapter that mates to G 1/2 rather than a domestic 1/2 inch NPT thread. The line itself is not in the box.
3) Will the REAH03B1U fit in the cabinet space under a commercial lavatory?
Plan on a unit measuring 11 x 8.25 x 5.125 inches and weighing about 9 pounds. That footprint needs a solid mounting surface under the sink, and on a wall-hung or ADA lavatory with no cabinet you will need a chase or adjacent cabinet to house it.
4) Does this TOTO unit need a separate tank water heater, or does it heat the water itself?
It heats the water itself. The REAH03B1U is an integrated on-demand hot water system combined with the touchless faucet controller, so a single unit replaces the separate point-of-use heater and sensor control box under the lavatory. That consolidation is the main reason to spec it over a control-only valve.
5) Does the TOTO REAH03B1U meet California water efficiency requirements?
The 0.5 GPM on-demand controller is CEC and CALGreen compliant. For a California commercial project that is the lavatory flow rate requirement it is written against.
6) Is the REAH03B1U battery powered or does it need an electrical outlet?
It is AC powered, so an electrician needs to provide power at the lavatory location. If your restroom has no power under the sinks, that rough-in has to be added before this unit can go in.
7) How much water does each activation of the TOTO REAH03B1U use?
Flow is 0.5 GPM and each on-demand cycle runs 10 seconds, which works out to 0.08 gallons per hand wash. Water runs only while hands are under the sensor and shuts off when they leave, so it cannot be left running in a public restroom.
8) Does this TOTO controller work with any sensor faucet, or only TOTO spouts?
It is built for compatible TOTO touchless spouts. Pair it with a TOTO spout from the same system; it is not sold as a universal controller for another manufacturer's sensor faucet.
9) Does this TOTO on-demand heater keep water hot all day, or does it waste standby energy?
Power saving logic tracks when hot water demand is low and cuts energy use during those periods. For an office or school restroom with long idle stretches overnight and on weekends, that is where the savings come from.
How fast can I get the TOTO REAH03B1U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO REAH03B1U come with a warranty?
Absolutely. The TOTO REAH03B1U is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO REAH03B1U?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the TOTO REAH03B1U from ZenSupply?
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