https://portal.dmflighting.com/products/round-double-new-construction?variant=40040237596785 Item Artafex-4-series- housing - Round Double New Construction Product Sku M4DHRS The M Series Double Housing provides a dual lighting solutions and brings a host of new features, options, and improvements to our award winning DID Series. Application: New Construction Aperture: 4" Round Ratings:ASTM E283 Certified Air Tight, IC (Insulation Contact) Rated