{"product_id":"metal-concrete-back-up-box-for-central-vacuum-inlets","title":"Metal Concrete Back-Up Box for Central Vacuum Inlets","description":"\u003cp\u003eThe metal concrete back-up box (SKU 515M) is purpose-designed for concrete and block-wall central vacuum installs. Self-contained and made of aluminum, the box creates a protected wall cavity for the low-voltage wiring connections that sit behind the inlet valve. Pour concrete right around it; the interior stays fully protected.\u003c\/p\u003e\u003cp\u003eIn commercial applications it does double duty: it can house an externally mounted inlet valve where the piping runs exposed outside the wall.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e aluminum, self-contained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 2-inch inner diameter female pipe connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e knock-out provided for low-voltage connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e receiving screw pattern matches universal-size inlet valves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e plaster cover\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor poured-concrete, block, and commercial exposed-pipe installs, SKU 515M is the purpose-built solution.\u003c\/p\u003e","brand":"MD Central Vacuum","offers":[{"title":"Default Title","offer_id":50026562846970,"sku":"515M","price":15.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3934\/3354\/files\/6ab16ab730004fbbd28fa3666969ee25.jpg?v=1786162400","url":"https:\/\/evacuumsandmore.com\/products\/metal-concrete-back-up-box-for-central-vacuum-inlets","provider":"Vacuums and More","version":"1.0","type":"link"}