Lawson SuperFlow Large Area Drain Grate, 18" x 36"
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Lawson SuperFlow Large Area Drain Grate, 18" x 36"

Item Number: NNG183650

Large area SuperFlow main drain grates begin at 18" × 36" and larger in 18" increments. SuperFlow capacity starting at 2080 GPM is unmatched. Install end-to-end to accommodate higher flow rates; no additional support required. Custom framing available to fit any length.

Features include:

  • ASME-2007 & NSF Compliant (Available ONLY in multiples of 18" × 18" for larger drains)
  • UV and strength tested under ASME A112.19.8M
  • A raised, cross-ridged profile for non-slip surface and to allow water penetration if blocked
  • PVC material
  • For multiple drain use
  • Wall or floor installation
  • Ten-year warranty
  • Contact us for specifications and pricing of other lengths.

Flow:

  • 18" × 36" – 2080 GPM Floor, 1496 GPM Wall; 343.44 sq. in. open area
  • 18" × 54" – 4269 GPM Floor; 514.66 sq. in. open area
  • 18" × 72" – 4518 GPM Floor, 686.88 sq. in. open area

Manufacturer recommeds cover replacement after 10 installed years.

$627.25 /EA
    • EA
  • Availability: Contact us for availability information

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