Industroprema d.o.o. delivered a multipurpose special two-way SORF type vehicle, manufactured by Hilton Kommunal GmbH, for ZET – Zagrebački elektriski tramvaj d.o.o. The vehicle is intended for periodic cleaning of 136 km of tram lines in Zagreb from sand, leaves and other impurities. Equipped with a hydrostatic undercarriage for a track width of 1000 mm, it has a clean water tank with a capacity of 2000 liters and a waste water tank with a capacity of 6.5 m³, enabling long-term operations without frequent breaks. The high-pressure pump of 800 bar enables effective non-contact cleaning of the rails. The upgrade is mounted on a MAN TGM 18.340 4×2 BB (EURO 6) chassis.