Marshall-Tufflex

Tee, Intersection, Y Branch & H Boxes

The multi-entry boxes that let a conduit run branch. Between them the tee, intersection, Y and H patterns cover every junction geometry a normal installation needs, without a single custom fitting.

Also searched as: tee box, T junction box, 3 way box, intersection box, 4 way box, cross box, Y branch box, H box, flat tee

Tee 3-way

Three entries — two in line and one at 90°. The standard branch box, codes AE2MRB5 (20mm) and AE3MRB5 (25mm).

Intersection 4-way

Four entries in a cross. Used where two runs cross and both need to be broken into. Codes AE2MRB6 (20mm) and AE3MRB6 (25mm).

Branch 3-way (Y box)

Three entries arranged as a Y rather than a T, for branches taken off at an angle. Codes AE2MRB14 (20mm) and AE3MRB14 (25mm).

Twin through way (H box)

Two entries on one face and one on the opposite face, offset — sometimes called a flat tee. It solves the junction that will not sit flat with a standard tee. Codes AE2MRB15 (20mm) and AE3MRB15 (25mm).

Frequently asked

What is an H box in conduit?
A twin through way box — two entries on one face and one on the opposite face, offset from each other. It is also called a flat tee, and it solves junctions where a standard tee box will not sit flat against the surface.
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