| Code | Variation |
| 41882 | Grooved Red Steel Flexible Coupler 2" |
| 41883 | Grooved Red Steel Flexible Coupler 2.1/2" |
| 41884 | Grooved Red Steel Flexible Coupler 3" |
| 41885 | Grooved Red Steel Flexible Coupler 4" |
| 41886 | Grooved Red Steel Flexible Coupler 5" |
| 41887 | Grooved Red Steel Flexible Coupler 6" |