{"product_id":"zurn-zrk-c-3-5-ob-retroflush-sensor-kit-3-5-gpf","title":"Zurn ZRK-C-3.5-OB Retroflush Sensor Kit 3.5 Gpf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ZURN ZRK-C-3.5-OB is a battery-powered retroflush sensor kit rated at 3.5 gallons per flush (GPF), designed to upgrade or restore automatic flushing capability on compatible flush valve bodies. The kit includes the sensor module and all components needed to convert or retrofit an existing manual or older automatic flush valve to battery-powered sensor operation. Licensed plumbers and commercial facility maintenance technicians typically install this kit in restroom fixture applications where touchless flushing is required or mandated.\u003c\/p\u003e\n\u003cp\u003eThis retroflush kit is suited for commercial and institutional restroom environments, including office buildings, schools, healthcare facilities, and public restrooms. It is intended for use with compatible Zurn flush valve bodies where a sensor-actuated, battery-powered conversion is the target configuration. The 3.5 GPF flow rate is appropriate for water closet applications in jurisdictions that permit this flush volume. Installation does not require hardwired electrical connections, making it viable for locations where line voltage is not available at the fixture.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3.5 GPF flush volume for water closet applications\u003c\/li\u003e\n  \u003cli\u003eBattery-powered operation eliminates the need for hardwired electrical supply at the valve\u003c\/li\u003e\n  \u003cli\u003eRetroflush design allows sensor upgrade on existing compatible flush valve bodies\u003c\/li\u003e\n  \u003cli\u003eIncludes sensor module and associated power components as a complete kit\u003c\/li\u003e\n  \u003cli\u003eTouchless sensor actuation supports hygiene requirements in commercial restrooms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style retroflush sensor replacement kit for compatible Zurn battery-powered flush valve assemblies rated at 3.5 GPF. Refer to Zurn product documentation and the superseding part number 40265105 to confirm fitment with your specific valve body.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off the water supply to the flush valve and relieve line pressure before disassembling any valve components. Do not overtighten sensor module connections, as damage to the valve body or sensor housing may result. Battery compartment access and sensor alignment should be verified before returning the fixture to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlush Volume\u003c\/strong\u003e: 3.5 GPF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Source\u003c\/strong\u003e: Battery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuation Type\u003c\/strong\u003e: Sensor (touchless)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKit Type\u003c\/strong\u003e: Retroflush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ZURN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZRK-C-3.5-OB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZURN","offers":[{"title":"Default Title","offer_id":51234031436082,"sku":"ZRK-C-3.5-OB","price":356.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307613393.jpg?v=1780115651","url":"https:\/\/voomisupply.com\/products\/zurn-zrk-c-3-5-ob-retroflush-sensor-kit-3-5-gpf","provider":"Voomi Supply","version":"1.0","type":"link"}