Based on this product's specifications, here are some alternatives and similar models
Drum vacuum Karcher NT 70/2 — 70 L dry & wet, 2400 W, 25.4 kPa, 148 l/s, 10 m cord
Summary description:
Professional drum vacuum Karcher NT 70/2 with 70 L plastic dust container and dust bag system for dry and wet cleaning. Powered from AC (220–240 V, 50–60 Hz) with 2400 W input, it delivers 25.4 kPa vacuum and 148 l/s airflow for effective cleaning of hard floors and carpets. Features a metal tube, 10 m cord, 75 dB noise level, and compact footprint (510×740×1010 mm). Ideal for industrial and commercial cleaning.