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18 Inch Square SuperSump Main Drain Sump With 8 Inch Port (Pack of 2) Item: MLD-SG-1818-WT2

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The SuperSump™ main drain system eliminates the need for certification of field-formed sumps by a licensed design professional. ASME-2007 and NSF Listed, Lawson Aquatics SuperSump now adds peace of mind and efficiency to its long list of benefits and advantages. The SuperSump with SuperFlow™ main drain grating are pre-certified which allows you to move forward with construction and avoid the unnecessary delay of field inspection and concrete sumps. Add to this the highest flow rate for maximum efficiency, it includes everything you need!

  • Internal plumbing fittings instead of external. Allows stacking and avoids breaking off or cracking during shipment, pressure testing or handling.
  • Unique built-in water stop with two vertical extensions. Prevents water passing over the flange.
  • A solid one-piece, injection-molded unit. Less expensive than fabricated PVC sheets, stainless steel or fiberglass.
  • Tapered body for strength—allows for water expansion during freezing, and easily stacks to reduce storage space and shipping costs.
  • Open Area: 183.06 square inches.
  • Size: 18 x 18 inch.
  • Floor GPM: 816; Wall GPM: 712.
  • Side Port 8 inches.

12 Inch Square SuperSump Main Drain Sump With 6 Inch Port (Pack of 2) Item: #MLD-SG-1212-WT2
18 Inch By 18 Inch Main Drain Grate Only 816 GPM (Package of 2) Item: #MLD-FGD-1818-2W