"Count On Comet Quality"
| Model | Max GPM | Max PSI | Max RPM | Req EBHP | Crankshaft |
| HW4040S | 4.0 | 4000 | 1450 | 11.0 | 24 mm |
| HW4040SGR^ | 4.2 | 4000 | 1450/3400 | 11.5 | 1" |
| HW4540S | 4.5 | 4000 | 1450 | 12.4 | 24 mm |
| HW4540SGR^ | 4.8 | 4000 | 1450/3400 | 13.2 | 1" |
| HWD4040G | 4.0 | 4000 | 3400 | 11.0 | 24 mm |
| HWD4540G | 4.5 | 4000 | 3400 | 12.4 | 24 mm |
| HWS4040S | 4.0 | 4000 | 1750 | 11.0 | 24 mm |
| HWS5040S | 5.0 | 4000 | 1750 | 13.7 | 24 mm |
| SW4040S | 4.0 | 4000 | 1450 | 11.0 | 24 mm |
| SW5540S | 5.5 | 4000 | 1450 | 15.1 | 24 mm |
| SWS4040S | 4.0 | 4000 | 1750 | 11.0 | 24 mm |
| TWS7040S | 7.0 | 4000 | 1750 | 19.2 | 24 mm |
| ZWD3040G | 3.0 | 4000 | 3400 | 8.2 | 1" |
| ZWD3540G | 3.5 | 4000 | 3400 | 9.6 | 1" |
| ZWD4040G | 4.0 | 4000 | 3400 | 11.0 | 1" |