Karcher - K 4 Power Control - Max 1900 PSI - Electric Power Induction Pressure Washer - with Vario & DirtBlaster Spray Wands - 1.5 GPM

Q: did the older models come with a detergent tank?

Yes, older K3 models have had detergent tanks.

Q: do this product come with the hose which use to connect to the garden faucet or tap? If not, which type of hose I need?

No, you can use a standard US garden hose- we recommend using a 5/8" hose.

Q: What type of cleaner can you use with this?

We recommend using our 2 cleaners with our pressure washers. The universal cleaner and the vehicle detergent (https://www.kaercher.com/us/home-garden/karcher-detergents-and-cleaning-solutions.html).

Q: it says ac/dc can you explain?

Electric current flows in two ways, Alternating Current (AC), the electrons keep switching directions. (DC) Direct Current, the electrons flow steadily in a single direction. To keep a long story short, it runs on an electric power cord.