{"product_id":"3m-7000148881-fire-barrier-cast-in-tub-box-assembly","title":"3M 7000148881 Fire Barrier Cast-in Tub Box Assembly","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7000148881 is a fire barrier cast-in tub box assembly designed to create a void on the top surface of a concrete slab for plumbing access. It fastens directly to a 2-inch 3M Fire Barrier Cast-In Device for Metallic Pipes. After the slab is cured, the 3-inch foam insert is removed to produce a void 3 inches deep. The assembly accommodates concrete slabs as thin as 4.5 inches and supports pipe sizes from 1.5 inches to 2 inches. Licensed plumbers and fire-stop contractors install this assembly as part of a code-compliant penetration firestop system in concrete floor construction.\u003c\/p\u003e\n\u003cp\u003eThis assembly is intended for use in residential and commercial concrete slab construction where plumbing penetrations require a pre-formed access void. It is specifically paired with the 2-inch 3M Fire Barrier Cast-In Device for Metallic Penetrations. When the tub box assembly and cast-in device are used together, the system can accommodate certain non-metallic penetrants in addition to metallic pipe — consult system details for a list of approved penetrants. This product is sold individually and is suited for new poured-concrete floor installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCreates a 3-inch deep void in cured concrete slabs for plumbing access\u003c\/li\u003e\n  \u003cli\u003eCompatible with concrete slab thickness as thin as 4.5 inches\u003c\/li\u003e\n  \u003cli\u003eSupports metallic pipe sizes from 1.5 inches to 2 inches\u003c\/li\u003e\n  \u003cli\u003eFoam insert is removed after slab cure to form the finished void\u003c\/li\u003e\n  \u003cli\u003eFastens directly to the 2-inch 3M Fire Barrier Cast-In Device for Metallic Pipes\u003c\/li\u003e\n  \u003cli\u003eMay allow approved non-metallic penetrants when used with the paired cast-in device — verify with system approval documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use specifically with the 2-inch 3M Fire Barrier Cast-In Device for Metallic Penetrations. The assembly accommodates pipe sizes from 1.5 inches to 2 inches in concrete slabs no thinner than 4.5 inches. See 3M system details for the full list of approved penetrant types.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or certified firestop contractors during concrete forming, prior to the slab pour. The tub box assembly must be secured to the cast-in device before concrete is placed. Remove the foam insert only after the concrete has fully cured. Follow applicable building codes and the manufacturer system approval documentation for penetrant type and firestop configuration requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFoam Insert Depth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Pipe Size Range\u003c\/strong\u003e: 1.5 inches to 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Slab Thickness\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePaired Device Pipe Size\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.42 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051115165863\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: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7000148881\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51344959013170,"sku":"7000148881","price":183.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310527986.jpg?v=1782046727","url":"https:\/\/voomisupply.com\/products\/3m-7000148881-fire-barrier-cast-in-tub-box-assembly","provider":"Voomi Supply","version":"1.0","type":"link"}