Based on this product's specifications, here are some alternatives and similar models
Nozzle Kärcher 2.638-792.0
Summary description:
The Kärcher 2.638-792.0 nozzle is compatible with various Kärcher pressure washers including models G 4.10 M, G 7.10 M, and K 2 series. With dimensions of 125 mm in width and height, and 570 mm in depth, it offers efficient cleaning performance. This nozzle enhances your pressure washer's capabilities, making it ideal for tackling tough dirt and grime.