Tap Box & 4-Sided Manhole Shield by Efficiency Production

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Efficiency Production, Inc.’s specifically designed 4-Sided Manhole Trench Shields and Tap Boxes are available with 4 inch wide steel panels in single or double walled models. Tap Boxes can be customized with bolt-on T-Door Panels for cross-trench utilities and connections. Four-sided manhole shields are frequently assembled with End Panel Connector (EC) Brackets.

Tap Box manhole shield

An Efficiency Production Tap Box manhole shield with

4-Sided Manhole Box

An Efficiency Production 4-Sided Manhole box with End-Connector Brackets