The Constellation range of sandblasters are able to adapt to the needs of most professional. The 4 chamber model has a stainless steel chassis with a broad glass window, blow gun inside the chamber - which is veryuseful when cleaning, a fluorescent lamp lighting system, changing valve inside the chamber, a relief valve that stops air flow when the pedal is released so sand is saved and an ergonomic pedal that is connected to the machine by flexible tubing. 440mm (w) x 280mm (h) x 510mm (d). Operating pressure = 2-5 atmospheres with a maximum air consumption of 80 litres per minute. Made entirely of stainless steel.