Do It Yourself Section My Garage Section Parts Look Up

Over 1,000,000 Orders Shipped Since 1997!

Do It Yourself - Outdoor Power Equipment Repair & Maintenance

Pressure Washer Nozzle Selection Guide

Posted in Pressure Washers
NOZZLE SIZE GUIDE
Nozzle Size To Achieve Pressure At Rated Flow (GPM)
GPM 500
PSI
750
PSI
1000
PSI
1250
PSI
1500
PSI
2000
PSI
2500
PSI
3000
PSI
3500
PSI
4000
PSI
5000
PSI
2.0 5.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 2.0 2.0
2.5 7.0 6.0 5.0 4.5 4.0 3.5 3.5 3.0 3.0 2.5 2.5
3.0 8.5 7.0 6.0 5.5 5.0 4.0 4.0 3.5 4.0 3.0 3.0
3.5 10 8.0 7.0 6.5 6.0 5.0 5.0 4.0 4.5 3.5 3.0
4.0 11 9.0 8.0 7.0 6.5 6.0 5.5 4.5 5.5 4.0 4.0
4.5 13 10.5 9.0 8.0 7.5 6.5 6.0 5.0 6.0 4.5 4.0
5.0 14 11.5 10 9.0 8.0 7.0 6.5 6.0 6.5 5.0 4.5
5.5 14 11.5 10 9.0 8.0 7.0 6.5 6.0 6.5 5.0 4.5
6.0 17 14 12 11 10 8.5 8.0 7.0 8.0 6.0 5.5
6.5 18 15 13 12 10.5 9.0 8.5 7.5 8.5 6.5 6.0
7.0 20 16 14 13 11 10 9.0 8.0 9.0 7.0 6.5
7.5 21 17 15 13.5 12 11 10 8.5 10 7.5 7.0
8.0 22 18 16 14.5 13 11.5 10.5 9.0 10.5 8.0 7.0
8.5 24 20 17 15 14 12 11 10 11 8.5 7.5
9.0 25 21 18 16 15 13 10.5 12 12 9.0 8.0
10.0 28 23 20 18 16 14 11.5 13 13 10 9.0
Example: To find the correct nozzle size to use when running 2.5 GPM at 1000 PSI, find 2.5 under the GPM column, then read across to the right to find the 1000PSI column. The correct nozzle size is 5.0
NOTE: Make sure that the motor/engine, pump and other components are rated for the applied pressure. Failure to match proper componets could result in equipment damage.