WE-EF / 131-6002 RLS410 Surface Collar To match luminaire housing. Surface j-box and conduit by other. Specifications: A: 3.94 B: 7.09 C1: 1.75 D1: ⌀1 D2: ⌀1.75 D3: ⌀0.38 M1: 2.75 M2: 5.75