GS-111-44-36RT-3O-MG-20x11

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GS = Ground Sleeve
111-44-36 = W x D x H
RT = Reinforced Top
3O = 3 Openings
MG = Munsell Green
20x11 = Top Opening W x D

Three Top Opening
Three top openings are for three single phase transformers on one box pad.

Three Top Opening