Why Buy From GS Design Center?

Premium products. Contractor-level expertise. Reliable nationwide delivery. That’s the GS Design Center difference. ⭐

Guarantee Against Damage

Shop with confidence at GS Design Center. If your item arrives damaged, simply report it within 48 hours with photos and we’ll send a replacement at no cost—fast and hassle-free. 📦✨

Need help choosing? Book a free design consult.

We offer free design consultations both in-showroom and through nationwide video conferencing for all customers.

Nationwide Shipping?

We ship all products quickly and safely anywhere in the United States.

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

✓ Authorized Dealer

✓ Manufacturer Warranty Included

✓ Fast Nationwide Shipping

✓ 30-Day Returns

✓ Secure Checkout

Questions? Call Now: (732) 494-8670

Save 25%

TOTO TET3GB31 EcoPower® Concealed 4"x4" Toilet Flush Valve (V.B. Set) - 1.6 GPF

Vendor: Toto

Type: Flush Valve

SKU: TET3GB31#SS

$1,078.50

$1,078.50 ~~$1,438.00~~

Shipping calculated at checkout.

Color: Stainless Steel

Stainless Steel

Spud Location: Back Spud Wall

Back Spud Wall Top Spud

Options: Standard Model

Standard Model

🔥 12 sold this week
👀 18 people viewing this product
🛒 6 people added this to cart today

💰 Found it cheaper? We will beat most competitor pricing.
📞 Call 732-494-8670 for the best deal

Nationwide Shipping — Trusted by Thousands
Prefer to order by phone? Call (732) 494-8670
Price Match Guarantee Against Major Retailers

Authorized Dealer
0% Financing available (Klarna/Shop Pay Installments)
Free Shipping | Ships Nationwide

Hurry up, only 10 items left in stock.

The water-powered turbine in the EcoPower flush valve charges the power supply during usage and provides maximum performance in even the most demanding, high-traffic commercial spaces.

Features:

1.6 GPF
Self-powered hydroelectric flush valve system
No minimum daily usage requirement
4” x 4” stainless steel cover plate with brushed satin finish and solid bronze valve body
Self-cleaning piston valve with 360° filter screen
Neutral rough-in and adjustable tail piece connection
Manual flush override
Smart sensor with self-adjusting detection range
6 second detection time to prevent ghost flushing
Concealed flush valve with 1” angle stop and 1-1/2” vacuum breaker set
Protects trap seal with a maintenance flush if not used in a 24 hr period
ADA Compliant

Download Data Sheets:

FAQ – TOTO TET3GB31 EcoPower® Concealed 4"x4" Toilet Flush Valve

What is the TOTO TET3GB31 EcoPower® Concealed Toilet Flush Valve?

The :contentReference[oaicite:0]{index=0} TET3GB31 EcoPower® is a concealed commercial toilet flush valve designed for reliable automatic flushing performance. Its 4"x4" concealed installation provides a clean, modern appearance while protecting internal components behind the wall.

What does EcoPower® technology do?

EcoPower® technology generates electricity from the flow of water through the valve system. This self-powered operation eliminates the need for batteries or external power connections, reducing maintenance requirements and operational costs.

What does “4"x4" concealed” mean?

The 4"x4" concealed configuration refers to the compact in-wall installation design that hides the flush valve components behind the restroom wall while leaving only the actuator or sensor visible.

Where is the TET3GB31 commonly installed?

This flush valve is commonly installed in commercial and institutional facilities such as hotels, airports, office buildings, shopping centers, hospitals, and educational facilities.

Does the TOTO TET3GB31 require batteries?

No, the EcoPower® system is completely battery-free. It uses hydro-generated energy from water flow to power the automatic flushing mechanism.

Is the TET3GB31 water efficient?

Yes, it is designed to optimize water usage while maintaining dependable flushing performance, helping commercial facilities reduce water consumption and utility costs.

What are the advantages of concealed flush valves?

Concealed flush valves improve restroom aesthetics, reduce exposed plumbing, enhance hygiene, and protect components from vandalism and wear in high-traffic commercial environments.

Should this flush valve be professionally installed?

Yes, professional installation by a licensed plumber is recommended to ensure proper concealed system setup, calibration, and long-term performance.