| ASMUSS CODE | Size (OD) mm | 
|---|---|
| 735910555 | 20x3/8” | 
| 735910556 | 20x½” | 
| 735910557 | 25x¾” | 
| 735910558 | 32x1” | 
| 735910559 | 40x1¼” | 
| 735910560 | 50x1½” | 
| 735910561 | 63x2” | 
We are currently not running Bob Le Hunt courses in person.
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