Code: TT2500-S-Cleanroom The TT2500-S-Cleanroom is a variant to the TT2500-S, and is especially designed to pull carts and trolleys in a clean room environment. Because of the closed clean room wheels, much less culmination of dirt occurs, and the wheels do not give off dirt. Furthermore, the electric tug consists completely of stainless steel (INOX) and can be easily thoroughly cleaned, making the TT2500-S-Cleanroom a maintenance friendly electric tug. The electric tug is also available in two lighter editions, the TT1000-T-Cleanroom, and the TT1500-T-Cleanroom.