Extensions for Utility Boxes
Available in a variety of shapes and sizes
Oldcastle Infrastructure Extensions for Utility Boxes are manufactured of SUPERFLEXON, which is stronger than structural foam for enhanced top-load strength and resistance to UV and wear.FEATURES AND BENEFITS
- Lighter than cast iron or concrete extensions
- easier warehouse handling
- reduced injury potential
- 10 Year Lid Guarantee
- Snap locks on drop-in lid
- discourage vandalism
- keep lid in place in high water
- Lids are easily interchangeable
- T-Top lid will fit boxes of other manufacturers
- Available in black
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