Product Description
10"x15"x6" Black Standard Utility Box Top Extension by Highline Products
- Made with SUPERFLEXON material
- Stronger than structural foam, greater top-load strength
- More UV and wear resistant than structural foam
- 10 Year lid guarantee
- Multiple extensions and depths available
- Designed for use with many competitor boxes
- Extensions available in black
- 18" one piece available in black and white
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