| 285 / | HD | PIPE JOINTS OR COUPLINGS |
| 285.1 | | MOLDED JOINT {11} |
| 286.1 | DF | .~> Interlocked {1} |
| 287.1 | DF | .~> With root repellent |
| 288.1 | DF | .~> Weld {8} |
| 289.1 | DF | .~> Solder {3} |
| 290.1 | DF | .~> Composite pipe (ends) {3} |
| 291.1 | DF | .~> Having screw interlock {1} |
| 292.1 | DF | .~> With lug and slot interlock |
| 293.1 | DF | .~> Lining or cover molded to pipe end |
| 294.1 | DF | .~> Sleeve {2} |
| 295.1 | DF | .~> With packing filler {2} |
| 296.1 | DF | .~> Sprue |