Based on this product's specifications, here are some alternatives and similar models
Karcher NT 90/2 Me Classic Drum Vacuum Cleaner, 2300 W, 90 L, Dry and Wet Cleaning
Summary description:
The Karcher NT 90/2 Me Classic is a powerful 2300 W drum vacuum cleaner designed for efficient dry and wet cleaning. Featuring a large 90-liter bagless container, it is ideal for demanding professional environments. The unit utilizes advanced filtering for effective dirt separation and operates at a noise level of 76 dB. Its robust design in anthracite, black, and silver ensures durability and reliable performance for heavy-duty cleaning tasks.