B-Line Eaton series pipe clamps and accessories, " height, 9.5" length, 1.25" width, Steel, Offset pipe clamp, Electro-plated zinc

Steel, with an electro-plated zinc finish. Electro-zinc is a dry indoor finish, so it suits conditioned interiors, mechanical rooms, and covered spaces. For sustained wet, washdown, or exterior exposure, specify a hot-dip galvanized or stainless version rather than the ZN.

An offset clamp holds the pipe away from the mounting surface rather than tight against it, so the run clears the wall, beam, or strut face. That gives you room for insulation, for a second line behind the pipe, or for the pipe to sit off a structural member. If you want the pipe held flush to the surface, use a standard one-hole or two-hole strap instead. The B3148-3 ZN is the offset type in 3 inch.

Order the fasteners separately. The clamp itself is the steel offset body in 3 inch; the anchor, bolt, or strut nut that attaches it to concrete, steel, or channel is chosen for the base material and is not part of this item.

Eaton B-Line part number B3148-3 ZN. The B3148 is the offset clamp series, the -3 is the 3 inch pipe size, and ZN designates the electro-plated zinc finish.

It is catalogued on the electrical side and is a standard support for 3 inch rigid conduit runs as well as pipe, since conduit and pipe share nominal trade sizes at that diameter. What it will not do is fit a 3 inch EMT or pipe of a different trade size, so match the size to the run you are supporting.