Undercarriage Sprayers??

[coobie]

Looking to purchase a wheeled undercarriage sprayer for my truck,car and trailers.What types are folks using? Not looking to purchase high $$ commercial type..

 

[oosik]

The only type I've seen are to be attached to the hose from a high pressure washer. Four or six nozzles across the head. The head has wheels and a long metal handle. As I remember, around $50 for the unit.