Conduit Hole Adaptor, Aluminum, Dimensions: 54.1x43.5x40mm (2.13x1.72x1.57”), Weight: 35.6g (0.06lb), Conduit hole: 19.1mm(3/4”)(M25), White, compatible with PNM-C16013R, QNV-C8083R/C9083R, XNO-C6083R/C7083R/C8083R/C9083R