The 4000PSI 8GPM Dump Gun is a great jetting accessory for pressure washing. The gun comes with a fan jet and pencil jet, but rotary tips are also available to achieve a wider spray pattern. In addition, extensions can be added to make the barrel longer if needed. This gun does not require an unloader valve because of its dumping feature. When the trigger is released, water dumps at a low pressure out of the end of the top shaft. Due to the dump gun being rated for 8GPM, when operating the bypass must be opened to adjust the GPM. On Tier 4 JMS Elite control panels there is a pressure washing gun mode button that can be used to automatically set the jetter at 3000PSI (the most optimal pressure for washing).
- Hose Size: ½”
- Application: Pressure Washing
- Pressure & Flow: 4000 PSI @ 8GPM
- Jet Configuration: Pencil tip or fan tip
