Intended for use with the K9-306 drain cleaning machine in clearing 4" pipes. In addition, this knocker features a three-chain design and ⅜" (10 mm) cable.
Intended for use with the K9-306 drain cleaning machine in clearing 4" pipes. In addition, this knocker features a three-chain design and ⅜" (10 mm) cable.
| Cable | ⅜" (10 mm) |
| Pipe | Size: 4" (100 mm) Type: PVC, ABS, orangeburg, corrugated, clay |
| Blockage | Grease Soft blockage |
| Number of chains | 3 |
| Weight | 0.37 lbs (0.168 kg) |