• Metal Concrete Back-Up Box for Central Vacuum Inlets
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MD Central Vacuum

Metal Concrete Back-Up Box for Central Vacuum Inlets

Metal Concrete Back-Up Box for Central Vacuum Inlets

$15.96 USD
$15.96 USD
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515M
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Shipping Information

We offer free standard shipping on eligible orders of $100 or more within the 48 contiguous United States. Eligibility is calculated on the merchandise subtotal after discounts and before tax.

Most in-stock orders using standard shipping are processed within 1-5 business days, and most arrive 2-11 business days after they are placed. Backordered and special-order items may take longer. Expedited UPS Ground is available at checkout for an extra charge, including on orders that qualify for free standard shipping. See our Shipping Policy for details.

Returns & Exchanges

Need to return an item? We’re happy to help. Eligible items may be returned by requesting authorization within 35 days of delivery. Once approved, your return must reach us within 21 days.

Return eligibility

Items must be unused, in new condition, and include their original packaging and all accessories. Machines that use water cannot be returned once unboxed, unless defective upon arrival.

Shipping and refunds

For non-defective returns, customers cover return shipping. Original shipping charges are nonrefundable. If your order included free shipping, our actual outbound shipping cost will be deducted from your refund. Eligible returns have no restocking fee.

Received a defective item?

Contact us so we can help arrange a prepaid return label and replacement.

Please review our Return & Refund Policy for complete details and exclusions.

Warranty Information

All products sold by Vacuums and More come with the manufacturer's warranty. Warranty terms vary by brand and product.

With 35 years of industry experience, we stand behind every product we sell. Contact us for warranty support.

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Metal Concrete Back-Up Box ...

$15.96

Product details

The 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.

In commercial applications it does double duty: it can house an externally mounted inlet valve where the piping runs exposed outside the wall.

  • Material: aluminum, self-contained
  • Connector: 2-inch inner diameter female pipe connector
  • Wiring: knock-out provided for low-voltage connections
  • Compatibility: receiving screw pattern matches universal-size inlet valves
  • Includes: plaster cover

For poured-concrete, block, and commercial exposed-pipe installs, SKU 515M is the purpose-built solution.