Main Drains

Lawson - SuperSump Main Drain System - 18" x 18" - Sump & Grate - White - 2 Pack - MLD-SG-1818-WT2 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 SuperFlow - Domed Frame and Grates - 18" x 72" Frame and Grate with Screws, Floor 4518 GPM Only Lawson Aquatics, Inc. has SuperFlow Frame and Grates NSF LISTED and VGB-2008-certified unblockable main drain grates with a "super flow" rate and a...