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18 Inch By 18 Inch Main Drain Grate Only 816 GPM (Package of 2) Item: MLD-FGD-1818-2W
$589.67 & FREE Shipping 4 - In stock

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The domed SuperFlow main drain grating is unique since it has the capability to maintain a flow rate of 816 GPM (18 x 18 inches). Includes grate (cover only) and screws. ASME-2007 and NSF Listed


  • Wall or floor installation.
  • ASME-2007 and NSF Listed.
  • UV and strength tested under ASME A112.19.8M.
  • Raised, cross-ridged profile for non-slip (and water penetration if blocked).
  • Ten-year warranty.

    Open Area: 183.06 square inches.
    Flow Rate Wall: 712.
    Flow Rate Floor: 816.

    Click Here for Certificate of Compliance and Diagram!

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