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 TET3LB31 EcoPower® High-Efficiency Concealed 4"x4" Toilet Flush Valve (V.B. Set) - 1.28 GPF

Vendor: Toto

Type: Flush Valve

SKU: TET3LB31#SS

$1,059.00

$1,059.00 ~~$1,412.00~~

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:

1.28 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
Contributes to earning credits in LEED®
Protects trap seal with a maintenance flush if not used in a 24 hr period
ADA Compliant

Download Data Sheets:

FAQ – TOTO TET3LB31 EcoPower® High-Efficiency Concealed 4"x4" Toilet Flush Valve

What is the TOTO TET3LB31 EcoPower® Concealed Toilet Flush Valve?

The :contentReference[oaicite:0]{index=0} TET3LB31 EcoPower® is a high-efficiency concealed toilet flush valve designed for commercial restroom applications. Its 4"x4" concealed installation provides a sleek, modern appearance while delivering reliable automatic flushing performance.

How does EcoPower® technology work?

EcoPower® technology generates electricity from the flow of water within the flush valve system. This allows the unit to operate without batteries or external electrical wiring, reducing maintenance and operating costs.

What does “4"x4" concealed” mean?

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

Where is the TET3LB31 commonly used?

This flush valve is commonly installed in commercial and institutional facilities such as airports, hotels, shopping malls, office buildings, schools, and healthcare facilities.

Does the TOTO TET3LB31 require batteries?

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

Is the TET3LB31 water efficient?

Yes, it is engineered for high-efficiency water usage, helping facilities reduce water consumption while maintaining strong and consistent flushing performance.

What are the advantages of concealed flush valves?

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

Is professional installation recommended?

Yes, installation should be completed by a licensed plumber experienced with concealed commercial flushometer systems to ensure proper setup and long-term reliability.