The 6000BU is our 2nd largest manual fill unit with a 4.5L boiler tank, 4.5bar pressure, and all stainless steel construction. It features 4 safety systems, a blowdown valve to help maintain its life and performance, and a heavy-duty contactor switch. The 6000BU is for those that demand the very best performance but don’t require more than a 4.5L boiler tank. Paired with the 3800IA steam brush, it produces dry pressurized steam perfect for a wide variety of materials and applications. Proudly Made in Italy.