The 22T Surge Master/Wallenstein H/V at HD is a very good unit also. I got mine used a couple years ago, looked like it had quite a lot of use on it but it still works flawlessly. The new ones have improvements over mine - like better & more secure hose routing. Key things I like about it, are that the control lever is up high front & centre & very easy to use from either side, and the motor & pump are fairly out of the way away from the business end. Very well built with a Honda engine. I would like it to have a bit more ground clearance, and also larger wheels, but that's only because I tow it with the ATV into pretty tight places over some rather rough ground. I cobbled up a cradle I can move from side to side just by pulling off one side & sticking on the other. Very happy with it.