www.phcppros.com/articles/6595-mifab-mi-gard-6-inch-trap-seal
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MIFAB MI-GARD 6 inch Trap Seal
December 14, 2017
The 6-inch MI-GARD Trap Seal to the existing extensive line of sizes: 1-1/2, 2, 2-1/2, 3, 3-1/2 and 4, and now 6 inches. Used by engineers and plumbing professionals in both new construction and retrofit applications, the product effectively prevents odors, sewer gases and insects from entering up through the floor drain grate.
MIFAB inc.