DRAIN COVERS Q: Are there approved covers for rectangular grates?
Yes. To qualify as compliant all drain covers must meet the ASME/ANSI A112.19.8-2007 standard regardless of size or configuration. Currently there are approved round covers, 9x 9- and 12×12-inch rectangular grates on the market. Large and unblockable drain covers are expected to be introduced into the marketplace beginning in November.