{"product_id":"toto-tet3lb31-ecopower-high-efficiency-concealed-4x4-toilet-flush-valve-v-b-set-1-28-gpf","title":"TOTO TET3LB31 EcoPower® High-Efficiency Concealed 4\"x4\" Toilet Flush Valve (V.B. Set) - 1.28 GPF","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1.28 GPF \u003c\/li\u003e\n\u003cli\u003eSelf-powered hydroelectric flush valve system\u003c\/li\u003e\n\u003cli\u003eNo minimum daily usage requirement\u003c\/li\u003e\n\u003cli\u003e4” x 4” stainless steel cover plate with brushed satin finish and solid bronze valve body\u003c\/li\u003e\n\u003cli\u003eSelf-cleaning piston valve with 360° filter screen \u003c\/li\u003e\n\u003cli\u003eNeutral rough-in and adjustable tail piece connection\u003c\/li\u003e\n\u003cli\u003eManual flush override\u003c\/li\u003e\n\u003cli\u003eSmart sensor with self-adjusting detection range\u003c\/li\u003e\n\u003cli\u003e6 second detection time to prevent ghost flushing\u003c\/li\u003e\n\u003cli\u003eConcealed flush valve with 1” angle stop and 1-1\/2” vacuum breaker set\u003c\/li\u003e\n\u003cli\u003eContributes to earning credits in LEED®\u003c\/li\u003e\n\u003cli\u003eProtects trap seal with a maintenance flush if not used in a 24 hr period\u003c\/li\u003e\n\u003cli\u003eADA Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eDownload Data Sheets:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/CADDrawing\/TD-00164_TET3GB%2CLB%2CUB.dxf\" target=\"_blank\" download=\"\"\u003e3D Drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/CADDrawing\/AD-01268_TET3GB%2CLB%2CUB.DXF\" target=\"_blank\" download=\"\"\u003eCAD Drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/REVITModels\/BM-00612_TET3LB%23SS.rfa\" target=\"_blank\" download=\"\"\u003eRevit Model\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/SpecSheet\/SS-02130_TET3LB.pdf\" target=\"_blank\"\u003eSpec Sheet - TET3LB\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/SpecSheet\/SS-02131_TET3LBi2.pdf\" target=\"_blank\"\u003eSpec Sheet - TET3LBi Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cbutton aria-controls=\"downloads-ccc-10111001538890829866\" aria-expanded=\"false\" type=\"button\"\u003eParts and Service Information\u003ci aria-hidden=\"true\"\u003e\u003c\/i\u003e\u003c\/button\u003e\u003c\/h4\u003e\u003cul class=\"accordion-content\" id=\"parts-ccc-10111001538890829866\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/Misc\/0GU3094_EcoPower_Flush_Valve.pdf\" target=\"_blank\"\u003eInstallation \u0026amp; Owners Manual - EcoPower Concealed Flush Valves\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/InstallationManual\/0GU3097E_Concealed%20EFV%20IoT%20Card%20IM.pdf\" target=\"_blank\"\u003eIoT Communication Card Installation Manual - EcoPower Concealed Flush Valves (ENG)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/InstallationManual\/0GU3097F_Concealed%20EFV%20IoT%20Card%20IM_FRN.pdf\" target=\"_blank\"\u003eIoT Communication Card Installation Manual - EcoPower Concealed Flush Valves (FRN)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/Misc\/Li-Battery-Test-Summary-THP3053-EFVEPF.pdf\" target=\"_blank\"\u003eLithium Battery Test Summary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/PartsManual\/PD-01114_VB1331.pdf\" target=\"_blank\"\u003eSpare Parts (VB31)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/PartsManual\/PD-01111_VB0932.pdf\" target=\"_blank\"\u003eSpare Parts Manual (VB32)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/PartsManual\/PD-01116_VB1333.pdf\" target=\"_blank\"\u003eSpare Parts Manual (VB33)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.totousa.com\/filemanager_uploads\/product_assets\/PartsManual\/PD-01485_TET3LB.pdf\" target=\"_blank\"\u003eSpare Parts Sheet (EFV)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003csection class=\"seo-faq\"\u003e\n  \u003ch2\u003eFAQ – TOTO TET3LB31 EcoPower® High-Efficiency Concealed 4\"x4\" Toilet Flush Valve\u003c\/h2\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eWhat is the TOTO TET3LB31 EcoPower® Concealed Toilet Flush Valve?\u003c\/h3\u003e\n    \u003cp\u003e\n      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.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eHow does EcoPower® technology work?\u003c\/h3\u003e\n    \u003cp\u003e\n      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.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eWhat does “4\"x4\" concealed” mean?\u003c\/h3\u003e\n    \u003cp\u003e\n      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.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eWhere is the TET3LB31 commonly used?\u003c\/h3\u003e\n    \u003cp\u003e\n      This flush valve is commonly installed in commercial and institutional facilities such as airports, hotels, shopping malls, office buildings, schools, and healthcare facilities.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eDoes the TOTO TET3LB31 require batteries?\u003c\/h3\u003e\n    \u003cp\u003e\n      No, the EcoPower® system is completely battery-free. It uses hydro-powered energy generated from water flow to operate the automatic flushing mechanism.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eIs the TET3LB31 water efficient?\u003c\/h3\u003e\n    \u003cp\u003e\n      Yes, it is engineered for high-efficiency water usage, helping facilities reduce water consumption while maintaining strong and consistent flushing performance.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eWhat are the advantages of concealed flush valves?\u003c\/h3\u003e\n    \u003cp\u003e\n      Concealed flush valves improve restroom aesthetics, reduce exposed plumbing, enhance hygiene, and help protect internal components from vandalism and damage in high-traffic environments.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"faq-item\"\u003e\n    \u003ch3\u003eIs professional installation recommended?\u003c\/h3\u003e\n    \u003cp\u003e\n      Yes, installation should be completed by a licensed plumber experienced with concealed commercial flushometer systems to ensure proper setup and long-term reliability.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/section\u003e      ","brand":"Toto","offers":[{"title":"Stainless Steel \/ Back Spud Wall \/ Standard Model","offer_id":53003858477353,"sku":"TET3LB31#SS","price":1059.0,"currency_code":"USD","in_stock":true},{"title":"Stainless Steel \/ Top Spud \/ Standard Model","offer_id":53003858510121,"sku":"TET3LB32#SS","price":1013.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/2778\/6281\/files\/TET3GA31-SS_2ae03291-b94f-4fa4-8c2b-f05bf4084a15.webp?v=1776447198","url":"https:\/\/www.gsdesigncenter.com\/products\/toto-tet3lb31-ecopower-high-efficiency-concealed-4x4-toilet-flush-valve-v-b-set-1-28-gpf","provider":"GS Design Center LLC","version":"1.0","type":"link"}