Lawson SuperFlow - Large 18" x 72" Frame and Grate + Screws, Floor 4518 GPM $2,230.30 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... Add to Cart
