See how a triplex swash plate pump works on an electric powered pressure washer. This same style pump is used on a lot of gas powered machines.
Read the online reviews:
Sun Joe spx4001
-SPX4001 Unit in the video: amzn.to/2nfWG3h
-SPX3000 Old unit with over 3000 reviews: amzn.to/2owN9Gp
sun joe spx4000 spx3001
28 мар 2017