In-Slab Multi Use Round Boxes MOI4-SLB (In-Slab) Buy Here Customizable Dual Service Round Concrete Box The MOI4-SLB multi-connect is a dual service, round, flush… Drawings and Resources MOI4-SLB-REC (Recessed In-Slab) Buy Here Customizable Dual Service, Recessed Round Concrete Box The Recessed MOI4-SLB-REC multi-connect is a dual service,… Drawings and Resources