American MAATCO is a manufacturer of drycast and wetcast concrete grade rings and lift hole plugs. We offer a wide variety of grade rings to suit your needs from manholes to frame riser installations. Our grade rings are used for new construction or rehab work.
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Sizes |
Pcs/Cube |
Sizes |
Pcs/Cube |
|
| 18x4x4 24x5x2 24x5x3 24x5x4 24x5x6 24x8x2 24x8x3 24x8x4 26x5x2 26x5x3 26x5x4 26x5x6 |
10 20 12 10 6 20 14 10 20 12 10 6 |
30x5x2 30x5x3 30x5x4 30x5x6 32x6x2 32x6x3 34x5x2 34x5x3 34x5x4 40x6x3 40x6x12 |
20 14 10 6 12 10 20 14 9 10 4 |
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All our grade rings meet ASTM C-478 standard.
Additional sizes available.
