The M18™ 4-Gallon Water Supply Kit delivers up to 60 PSI of adjustable pressure with a battery-powered system and an interchangeable tank.
| Manufacturer part number (MPN) | 3019-21WS |
| Brand | Milwaukee Tool |
| Category | Power Tools |
| Height | 22.5 in |
| Length | 10.5 in |
| Width | 15 in |
| Battery System | M18™ |
| Brushless Motor | No |
| FUEL™ | No |
| Motor Type | Brushed |
| Weight | 18.9 lb |
| ONE-KEY™ Enabled | No |
| Tool Branding | Brushed |
| Tank Capacity | 4 gal |
| Warranty | 3 Year Base, 1 Year Tank, 3 Year Battery |
| MOQ | 1 |