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| Trough | Reference | Description | Loading group class to BS EN 124 | S/W NOM (KG) | A | B | C | 
|---|---|---|---|---|---|---|---|
| 450 | GRP Solid Top Lid | GRP Solid Top Lid to fit 450 wide trough with 50 deep rebate 5T SWL - 11.5T SWL | B, C, D | 10.6 | 609 | 609 | 50/100 | 
| 600 | GRP Solid Top Lid | GRP Solid Top Lid to fit 600 wide trough with 50 deep rebate 5T SWL - 11.5T SWL | B, C, D | 12.8 | 734 | 734 | 50/100 | 
| 750 | GRP Solid Top Lid | GRP Solid Top Lid to fit 750 wide trough with 50 deep rebate 1.5T SWL - 6.5T SWL | A, B, C | 27.6 | 929 | 929 | 50/100 | 
| 1000 | GRP Solid Top Lid | GRP Solid Top Lid to fit 1000 wide trough with 50 deep rebate 1.5T SWL - 6.5T SWL | A, B, C | 35.7 | 1204 | 1204 | 50/100 | 






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